REGISTRATION RIGHTS AGREEMENT

         THIS  AGREEMENT  (this  "Agreement")  is made  and  entered  into as of
                                  ---------
November 9, 2001,  by and among THOR  INDUSTRIES,  INC., a Delaware  corporation
(the  "Company"),  and certain holders of shares of capital stock of the Company
       -------
whose  names  are  listed  at the  foot of  this  Agreement  (collectively,  the
"Shareholders"  and,  together  with  the  Company,   are  referred  to  herein,
 ------------
individually, as a "Party" and collectively, as the "Parties").
                    -----                            -------

                              W I T N E S S E T H:
                              - - - - - - - - - -

         WHEREAS,  pursuant to that certain Agreement and Plan of Merger,  dated
as of  November  9,  2001,  by and among  Thor  Acquisition  Corp.,  a  Delaware
corporation  ("Acquisition  Subsidiary"),  the Company,  Keystone RV Company, an
               -----------------------
Indiana corporation ("Keystone"),  and the Shareholders (as amended from time to
                      --------
time,  the "Merger  Agreement"),  the  Company  has issued  shares of its common
            -----------------
stock, par value $.10 per share ("Common Stock"), to the Shareholders as partial
                                  ------------
consideration for the transactions contemplated by the Merger Agreement;

         WHEREAS,  pursuant to the Merger  Agreement,  the Company has agreed to
file with the SEC (as defined below), as soon as practicable  following the date
hereof,  a  Registration  Statement  on Form S-3  covering the resale by certain
Holders (as defined below) of their Registrable Securities (as defined below);

         WHEREAS,  pursuant to the Merger  Agreement,  the Company has agreed to
file with the SEC one or more  additional  Registration  Statements on Forms S-3
covering the resale by the other Holders of their Registrable Securities; and

         WHEREAS,  the execution  and delivery of this  Agreement by the Company
and  each  of  the  Shareholders  is a  condition  to  the  consummation  of the
transactions contemplated by the Merger Agreement.

         NOW,  THEREFORE,  in consideration  of the mutual promises,  covenants,
agreements  and  conditions  set forth in this  Agreement and for other good and
valuable   consideration,   the  receipt   and   adequacy  of  which  is  hereby
acknowledged, the Parties hereby agree as follows:

        1.      DEFINITIONS

                1.1.    For  purposes  of this  Agreement,  the  terms set forth
below shall have the following meanings:

                "Affiliate"  shall  mean any  Person (as  defined  below)  that,
                 ---------
directly  or  indirectly,  through  one  or  more  intermediaries  controls,  is
controlled by, or is under common control with, such other Person.

                "Blackout  Period"  shall have the  meaning set forth in Section
                 ----------------
4.1(b).

                                       1


                "Business   Day"  shall   mean  those  days  on  which   lending
                 --------------
institutions  in the  State of New  York are not  required  or  permitted  to be
closed.

                "Common Stock" shall have the meaning set forth in the recitals.
                 ------------

                "Company  Indemnified  Parties" shall have the meaning set forth
                 -----------------------------
in Section 7.2.

                "Company  Notice"  shall have the  meaning  set forth in Section
                 ---------------
3.2(a).

                "Control",  "controlled  by" and "under common control with", as
                 -------     --------------       -------------------------
used with respect to any Person,  means the possession,  directly or indirectly,
of the power to direct or cause the direction of the  management and policies of
such Person, whether through ownership of voting securities or otherwise.

                "Dispose"  or  "Disposition"  shall  mean,  with  respect to the
                 -------        -----------
Registrable  Securities,  any assignment,  transfer,  pledge,  hypothecation  or
encumbrance,  any offer or grant of any  option  for or  participation  in,  any
issuance  of any  derivative  security  based  on, or any put,  call or  similar
arrangement with respect thereto.

                "Effectiveness  Period"  shall  mean,  as the case  may be,  the
                 ---------------------
Initial   Registration   Statement   Effectiveness   Period  or  the  Subsequent
Registration Statement Effectiveness Period, each as described in Section 3.

                "Escrowed Shares" shall mean those Merger Shares that, from time
                 ---------------
to time, are to be deposited and retained in escrow  pursuant to Section 2.05(a)
of the Merger  Agreement and that certain Escrow  Agreement dated as of the date
hereof by and among The Chase  Manhattan Bank and certain  parties to the Merger
Agreement.

                "Exchange Act" shall mean the  Securities  Exchange Act of 1934,
                 ------------
as amended.

                "Holder"  shall  mean  each  of  the   Shareholders   and  their
                 ------
respective permitted transferees.

                "Holder Indemnified Parties" shall have the meaning set forth in
                 --------------------------
Section 7.1.

                "Holder  Notice"  shall  have the  meaning  set forth in Section
                 --------------
3.2(b).

                "Holders'  Special  Counsel"  shall  mean  Hutchins,  Wheeler  &
                 --------------------------
Dittmar, A Professional  Corporation,  or any other firm named in writing by the
Shareholder Representatives and delivered to the Company.

                "Indemnified Party" shall have the meaning set forth in
                 -----------------
Section 7.3.

                "Indemnifying Party" shall have the meaning set forth in Section
                 ------------------
7.3.

                "Initial  Registration  Statement"  shall have the  meaning  set
                 --------------------------------
forth in Section 3.1(a).

                "Initial Registration Statement Effectiveness Period" shall have
                 ---------------------------------------------------
the meaning set forth in Section 3.1(c).

                                       2


                "Losses" shall have the meaning set forth in Section 7.1.
                 ------

                "Merger  Agreement"  shall  have the  meaning  set  forth in the
                 -----------------
recitals.

                "Merger   Closing   Date"   shall   mean   November   9,   2001.
                 -----------------------

                "Merger  Shares" shall mean the shares of Common Stock that were
                 --------------
issued to the Shareholders on the Merger Closing Date.

                "NYSE" shall have the meaning set forth in Section 4.1(j).
                 ----

                "Participating  Holder"  shall mean a Holder who has  elected to
                 ---------------------
include its Registrable Securities in a Registration Statement.

                "Person"  means any person  (including,  without a  limitation a
                 ------
"person" as defined in Section 13(d)(3) of the Exchange Act), firm, corporation,
company, partnership, trust, incorporated or unincorporated association, limited
liability company, joint venture, joint stock company,  government (or an agency
or political subdivision thereof) or other entity of any kind, and shall include
any successor (by merger or otherwise) of any such entity.

                "Register",  "registered"  and  "registration"  shall refer to a
                 --------     ----------         ------------
registration  effected  by  preparing  and filing a  registration  statement  or
statements  or similar  documents  in  compliance  with the  Securities  Act and
pursuant to Rule 415 under the  Securities  Act, or any successor rule providing
for the offering of  securities  on a continuous  or delayed basis ("Rule 415"),
and the declaration or ordering of effectiveness of such registration  statement
or document by the SEC.

                "Registrable  Securities" shall mean (i) the Unrestricted Merger
                 -----------------------
Shares  held by the  Holders  and (ii) the  shares  of  Common  Stock  issued or
issuable with respect to the  Unrestricted  Merger Shares  referred to in clause
(i) by  virtue  of  any  stock  split,  stock  combination,  stock  dividend  or
reclassification,  or  pursuant  to  a  merger,  consolidation,  reorganization,
recapitalization or other similar event;  provided,  however,  shares of capital
stock  referred to in clauses (i) and (ii) that are considered to be Registrable
Securities  shall cease to be  Registrable  Securities (A) upon the sale thereof
pursuant to a registration statement declared effective by the SEC, (B) upon the
sale thereof  pursuant to Rule 144 (as defined below),  (C) when such securities
cease to be outstanding,  or (D) upon the sale thereof in a private  transaction
where the  transferor's  rights  under this  Agreement  are not  assigned or are
improperly assigned pursuant to the terms and conditions of this Agreement.

                "Registration  Statement" means a Registration Statement on Form
                 -----------------------
S-3 (or any successor  form) filed with the SEC pursuant to the  Securities  Act
that covers any of the Registrable Securities pursuant to the provisions of this
Agreement,  including the Initial  Registration  Statement  and each  Subsequent
Registration   Statement  and  all  amendments  and   supplements  to  any  such
Registration  Statements,  including  post-effective  amendments,  in each  case
including  all  exhibits  thereto and all  materials  incorporated  by reference
therein.

                "Restricted  Shareholder"  shall have the meaning  given to such
                 -----------------------
term in the Stock Restriction Agreement.

                                       3


                "Rule 144" shall mean Rule 144 promulgated  under the Securities
                 --------
Act (or any successor rule).

                "Rule  144(c)"  shall  mean Rule  144(c)  promulgated  under the
                 -----------
Securities Act (or any successor rule).

                "SEC" shall mean the Securities and Exchange Commission.
                 ---

                "Securities  Act"  shall  mean the  Securities  Act of 1933,  as
                 ---------------
amended.

                "Shareholder  Representatives"  shall mean Joseph F. Trustey and
                 ----------------------------
H. Coleman Davis, III.


                "Stock  Restriction  Agreement"  shall mean that  certain  Stock
                 -----------------------------
Restriction Agreement, dated as of the date hereof, by and among the Company and
certain of the Shareholders.

                "Subsequent  Registration  Statement" shall have the meaning set
                 -----------------------------------
forth in Section 3.2(a).

                "Subsequent  Registration Statement  Effectiveness Period" shall
                 --------------------------------------------------------
have the meaning set forth in Section 3.2(e).

                "Summit Holders" shall mean,  collectively,  (i) Summit Ventures
                 --------------
V, L.P., a Delaware  limited  partnership,  (ii) Summit  Investors  III, L.P., a
Delaware  limited  partnership,  (iii) Summit V Advisors Fund,  L.P., a Delaware
limited  partnership,  (iv) Summit V Companion  Fund,  L.P., a Delaware  limited
partnership,  and (v) Summit V Advisors  Fund,  (QP),  L.P., a Delaware  limited
partnership, and their respective permitted transferees.

                "Unrestricted  Merger  Shares" shall mean the Merger Shares held
                 ----------------------------
by the Holders  that are not subject to the transfer  restrictions  set forth in
the Stock Restriction Agreement.

        2.      TRANSFERS OF THE  REGISTRABLE  SECURITIES  AND THE  REGISTRATION
                RIGHTS

                Notwithstanding  the registration  rights granted by the Company
to the Holders  pursuant to this Agreement,  the Disposition of such Registrable
Securities and the registration rights relating thereto shall be in all respects
subject to the transfer  restrictions set forth in Section 10.3 and in the Stock
Restriction Agreement, as applicable.

        3.       REGISTRATION RIGHTS

                3.1.    Initial Registration Statement.
                        ------------------------------

        (a)     Not  later  than two (2)  Business  Days  following  the  Merger
Closing  Date,  the  Company  shall file with the SEC a  Registration  Statement
covering  the  registration  of the  Registrable  Securities  held by all of the
Shareholders other than the Restricted  Shareholders (the "Initial  Registration
                                                           ---------------------
Statement").
- ---------

                                       4


        (b)     The Company shall use its  reasonable  best efforts to cause the
SEC to declare the Initial Registration Statement effective pursuant to Rule 415
as promptly as practicable following its filing.

        (c)     The  Company  shall  keep  the  Initial  Registration  Statement
effective  at all  times  until  the  earlier  of (i)  such  time  as all of the
Registrable Securities registered thereunder have been disposed of in accordance
with the intended method of disposition  set forth in such Initial  Registration
Statement  declared effective by the SEC, and (ii) such date that is twelve (12)
months  after the  effective  date of the Initial  Registration  Statement  (the
period  ending  on such  time or date in  clauses  (i) and (ii) of this  Section
3.1(c), the "Initial Registration Statement Effectiveness Period").
             ---------------------------------------------------

        3.2.    Subsequent Registration Statements.
                ----------------------------------

        (a)     Not later than ninety (90) days prior to each anniversary of the
Merger Closing Date, the Company shall give written notice to each Holder (each,
a "Company  Notice") of its intention to file a Registration  Statement with the
SEC  on or  about  such  anniversary  date  covering  the  registration  of  the
Registrable  Securities  held by the Holders (each,  a "Subsequent  Registration
                                                        ------------------------
Statement").
- ---------

        (b)     Within  forty-five  (45)  days  following  receipt  of a Company
Notice,  each Holder electing to participate in such registration  shall deliver
written notice to the Company (each, a "Holder Notice") of his intention to have
all or a  specified  number of the  Registrable  Securities  held by such Holder
registered  under the Subsequent  Registration  Statement that is the subject of
the Company Notice.

        (c)     The Company shall use its reasonable best efforts to prepare and
file  with the SEC  each  Subsequent  Registration  Statement  (on or about  the
anniversary date identified in the respective Company Notice) that registers the
Registrable Securities specified in the Holder Notice.

        (d)     The Company shall use its  reasonable  best efforts to cause the
SEC to declare each Subsequent Registration Statement effective pursuant to Rule
415 as promptly as practicable following its filing.

        (e)     The Company shall keep each  Subsequent  Registration  Statement
effective  at all  times  until  the  earlier  of (i)  such  time  as all of the
Registrable Securities registered thereunder have been disposed of in accordance
with the intended methods of disposition set forth in the respective  Subsequent
Registration Statement declared effective by the SEC, and (ii) such date that is
six  (6)  months  after  the  effective  date of  such  Subsequent  Registration
Statement  (the  period  ending on such time or date in clauses  (i) and (ii) of
this  Section  3.2(e),  the  "Subsequent  Registration  Statement  Effectiveness
                              --------------------------------------------------
Period").
- ------

        (f)     The Company's  obligations to file  Registration  Statements and
any  amendments or  supplements  thereto under this Section 3.2 shall  terminate
following the termination of the Subsequent Registration Statement Effectiveness
Period applicable to the Subsequent Registration Statement filed on or about the
fifth anniversary of this Agreement.

                                       5


        3.3.    Limitation.   Notwithstanding  the provisions of this Section 3,
                ----------
the Company shall not be obligated to include any Registrable  Securities that a
Holder desires to include in a Registration  Statement  pursuant to Section 3 or
maintain  the  effectiveness  of any  Registration  Statement  pursuant  to this
Section 3, if all of the  Registrable  Securities  that such  Holder  desires to
include or all of the Registrable Securities held by such Holder then registered
under such  Registration  Statement,  as applicable,  may, in the opinion of the
Company's  counsel,  be sold in a three (3) month  period  without  registration
under the Securities Act pursuant to Rule 144, and such  Registrable  Securities
represent less than one percent (1%) of all outstanding  shares of the Company's
capital stock.

        4.       REGISTRATION PROCEDURES

        4.1.    Registration Statement.     Whenever    registration    of   the
                ----------------------
Registrable Securities is required pursuant to this Agreement, the Company shall
use its reasonable best efforts to effect the  registration of such  Registrable
Securities in accordance with the intended method of  distribution  thereof,  as
promptly as practicable,  and in connection  with any such request,  the Company
shall:

        (a)     Participation in Preparation.   Permit      the      Shareholder
Representatives  and the Holders'  Special Counsel to review and comment on each
Registration Statement, prospectus, amendment or supplement, as the case may be,
a reasonable period of time prior to the filing of same with the SEC.

        (b)     Effectiveness; Blackout Periods.   Keep     the     Registration
Statements  effective  pursuant  to Rule  415 for the  respective  Effectiveness
Periods set forth in Sections 3.1(a) and 3.2(e);  provided,  however,  if at any
                                                  --------   -------
time after the effective date of a Registration  Statement,  the Company,  based
upon the advice of its counsel,  determines in good faith that  maintaining  the
effectiveness of a Registration Statement would require disclosure of non-public
material  information  that  is not in the  best  interests  of the  Company  to
disclose, then the Company may require the Participating Holders not to make any
sale or sales of Registrable Securities pursuant to the respective  Registration
Statement until the Company gives the Participating Holders notice that they can
re-commence  sales of the Registrable  Securities (the period  commencing on the
date  specified in the blackout  notice and ending on the date  specified in the
re-commencement notice, the "Blackout Period"); provided, that in no event shall
                             ---------------    --------
any single Blackout Period exceed sixty (60) days; and provided,  further,  that
                                                       --------   -------
the Company shall not invoke a Blackout  Period more than three (3) times or for
more than one hundred  twenty (120) days in the  aggregate in any three  hundred
sixty (360) day period.

        (c)     Amendments.    Prepare  and file  with  the SEC such  amendments
(including  post-effective  amendments)  and  supplements  to each  Registration
Statement and the prospectus used in connection with the Registration  Statement
as may be necessary to keep such Registration  Statement  continuously effective
and cause the related  prospectus to be supplemented by any required  prospectus
supplement,  and as so  supplemented  to be filed  pursuant  to Rule 424 (or any
similar  provisions then in force)  promulgated  under the Securities Act at all
times  during the  respective  Effectiveness  Period,  and,  during such period,
comply with the provisions of the Securities Act and the Exchange Act applicable

                                       6


to the Company in order to permit the disposition by the  Participating  Holders
of the Registrable Securities subject to the respective Registration Statement.

        (d)     Copies.    Promptly  furnish  to each  Participating  Holder one
copy of the Registration  Statement  registering its Registrable  Securities and
any amendment thereto, each prospectus and each amendment or supplement relating
thereto, including all financial statements and schedules, and, to the extent so
requested,   all  documents  incorporated  by  reference  in  such  Registration
Statement,  and all  exhibits  thereto and such number of copies of a prospectus
and all  amendments  and  supplements  thereto and such other  documents as each
Participating   Holder  may  reasonably  request  in  order  to  facilitate  the
disposition of the Registrable Securities owned by such Participating Holder.

        (e)     Blue Sky.     Prior  to  any  public   offering  of  Registrable
Securities,  the Company shall use its  reasonable  best efforts to register and
qualify  (or  seek  an  exception  from  registration  or  qualification)   such
Registrable  Securities  under  the  securities  or  "blue  sky"  laws  of  such
jurisdictions that each Participating  Holder may reasonably request in writing,
prepare   and   file  in  those   jurisdictions   such   amendments   (including
post-effective   amendments)   and   supplements  to  such   registrations   and
qualifications as may be necessary to maintain the effectiveness  thereof at all
times during the respective Effectiveness Period, take such other actions as may
be reasonably  necessary to maintain such  registrations and  qualifications and
the  effectiveness  thereof  at all times  during the  respective  Effectiveness
Period, and take all other actions reasonably  necessary or advisable to qualify
the  Registrable  Securities  for  sale  by the  Participating  Holders  in such
jurisdictions;   provided,  however,  the  Company  shall  not  be  required  in
connection  therewith or as a condition  thereto (x) to qualify  generally to do
business or file a general consent to service of process,  or (y) subject itself
to  material  taxation  in any  jurisdiction  where it would  not  otherwise  be
required to qualify or to consent to service of process or to become  subject to
taxation but for the provisions set for in this Section 4.1(e).

        (f)     10b-5 Notification.     Promptly   notify   each   Participating
Holder  of the  occurrence  of any  event as a result  of which  the  prospectus
included  in a  Registration  Statement,  as then in effect,  includes an untrue
statement of a material  fact or omits to state a material  fact  required to be
stated  therein or necessary to make the  statements  therein not  misleading in
light of the circumstances  then existing or which requires the Company to amend
or supplement such  Registration  Statement due to the receipt by the Company of
new or additional information about a Participating Holder or such Participating
Holder's   intended  plan  of  distribution  of  his,  her  or  its  Registrable
Securities;  and, in such event,  the Company,  subject to Section  4.1(b),  (x)
shall promptly  supplement or amend such Registration  Statement to correct such
untrue  statement or omission or to reflect such new or additional  information,
so that, as thereafter delivered by any Participating Holder to any purchaser of
such securities,  such prospectus, as supplemented or amended, shall not include
an untrue statement of a material fact or omit to state a material fact required
to be stated therein or necessary to make the statements  therein not misleading
in the light of the  circumstances  under  which they were  made,  and (y) shall
promptly  furnish to each  Participating  Holder  that  number of copies of such
supplement to or amendment of such  prospectus as any  Participating  Holder may
reasonably request.

        (g)     Notification of Stop-Orders;  Suspensions of  Qualification  and
Exemptions. Promptly notify each Participating Holder of the issuance by the SEC
of any  stop-order  or any  notification  with respect to the  suspension of the

                                       7


qualification  or  exemption  from  qualification  of  any  of  the  Registrable
Securities for sale in any  jurisdiction or the initiation or threatening of any
proceeding for such purpose and the Company  agrees to use its  reasonable  best
efforts to (x) prevent the issuance of any such stop-order,  and in the event of
such  issuance,  to obtain the  withdrawal of any such stop order and (y) obtain
the  withdrawal of any order  suspending  or  preventing  the use of any related
prospectus  or  suspending  the  qualification  of  any  Registrable  Securities
included in such  Registration  Statement  for sale in any  jurisdiction  at the
earliest practicable date.

        (h)     Earnings Statements.    Make generally available to its security
holders as soon as  practicable,  but not later than  ninety (90) days after the
close of the period covered  thereby,  an earnings  statement (in form complying
with the provisions of Rule 158 under the Securities Act) covering a twelve (12)
month  period  beginning  not later  than the first  (1st) day of the  Company's
fiscal quarter next following the effective date of the respective  Registration
Statement.

        (i)     Due Diligence.   Make available, at reasonable times and places,
for inspection by a Participating  Holder and the Holders' Special Counsel for a
reasonable period prior to the filing of a Registration Statement, all documents
incorporated  by  reference  in such  Registration  Statement,  each  prospectus
included  therein,  and  each  amendment  thereof  or  supplement  thereto,  all
pertinent  financial  and  other  records,  pertinent  corporate  documents  and
properties  of the  Company,  as shall be  reasonably  necessary  to enable each
Participating Holder to conduct a reasonable investigation within the meaning of
the Securities Act; provided that any records, information or documents that are
designated by the Company in writing as confidential  shall be kept confidential
by such person unless  disclosure of such records,  information  or documents is
required by court or administrative  order or any governmental  authority having
jurisdiction.

        (j)     Listing Requirements.    Use  its  reasonable  best  efforts  to
secure and maintain the listing of the  Registrable  Securities  on the New York
Stock  Exchange  (the  "NYSE")  and on any other  securities  exchange  on which
similar securities issued by the Company are then listed.

        (k)     Stock Certificates.    Cooperate with each Participating  Holder
to facilitate the timely  preparation and delivery of certificates  (not bearing
any restrictive  legends)  representing  Registrable  Securities and enable such
certificates to be in such denominations or amounts as any Participating  Holder
may  reasonably  request and be registered  in such names as such  Participating
Holder may reasonably request.  The Company shall give appropriate  instructions
to the  Company's  transfer  agent  to  cause  the  transfer  agent  to  deliver
certificates  representing  the Registrable  Securities  without any restrictive
legends  upon  receipt of the  Participating  Holder's  certification  that such
Registrable  Securities  have been sold  pursuant  to a  Registration  Statement
contemplated hereby. The Company shall require that each Participating  Holder's
counsel deliver to the Company's  transfer agent an opinion in customary form as
may be required to remove such restrictive legend.

        (l)     Agreements.    Take  all  other  reasonable  actions  (including
entering into  customary  agreements)  necessary to expedite and  facilitate the
disposition by the Participating Holders of Registrable Securities pursuant to a
Registration Statement.

        4.2.    Rule 144 Reporting; Removal of Legends.
                --------------------------------------

                                       8


        (a)     With a view to making  available  the  benefits  of Rule 144 and
certain other rules and  regulations  of the SEC that may permit the sale of the
Registrable Securities to the public without registration, the Company covenants
that it shall:

                (i)    make and keep public  information  regarding  the Company
                       available  as those terms are  understood  and defined in
                       Rule 144;

                (ii)   file  with the SEC in a timely  manner  all  reports  and
                       other  documents   required  of  the  Company  under  the
                       Securities Act and the Exchange Act; and

                (iii)  furnish to any Holder forthwith,  upon written request, a
                       written  statement  by the  Company as to its  compliance
                       with the  reporting  provisions  contained in Rule 144(c)
                       under  the  Securities  Act,  a copy of the  most  recent
                       annual or quarterly report of the Company, and such other
                       reports  and   documents  so  filed  as  any  Holder  may
                       reasonably  request  in  availing  itself  of any rule or
                       regulation  of the SEC  allowing  a Holder to sell any of
                       the Registrable Securities without registration.

        (b)     The Company shall give appropriate instructions to the Company's
transfer agent to cause the transfer agent to deliver certificates  representing
the Registrable  Securities without any restrictive  legends upon receipt of the
Holder's  certification that such Registrable Securities have been sold pursuant
to Rule 144.  Each  Holder  shall  cause its legal  counsel  to  deliver  to the
Company's  transfer  agent an opinion in  customary  form as may be  required to
remove such restrictive legends following a sale pursuant to Rule 144.

        5.      OBLIGATIONS OF THE PARTICIPATING HOLDERS AND HOLDERS

                5.1.    Each  Participating  Holder and Holder,  as the case may
be, shall:

        (a)     furnish to the Company such  information  regarding the intended
plan of distribution  of its Registrable  Securities that pursuant to applicable
law is  required to be included in a  Registration  Statement  or any  amendment
thereto;

        (b)     upon receipt of any notice from the Company of the  happening of
any  event  of the  kind  described  in  Section  4.1(a)  or  4.1(f),  forthwith
discontinue  disposition  of Registrable  Securities  pursuant to the respective
Registration   Statement  until  such  Participating  Holder's  receipt  of  the
re-commencement   notice  contemplated  by  Section  4.1(a)  or  copies  of  the
supplemented or amended  prospectus  contemplated by Section 4.1(f),  and, if so
directed by the Company,  such Participating  Holder will deliver to the Company
(at the Company's expense) all copies,  other than permanent file copies then in
such  Participating  Holder's  possession,   of  the  prospectus  covering  such
Registrable  Securities  current at the time of receipt of such  notice.  In the
event the Company  shall give any such notice  under  Sections  4.1(a) or 4.1(f)
(other  than as a result of the  receipt  by the  Company  of new or  additional
information about a Participating Holder or such Participating Holder's intended
plan of distribution),  the Company shall extend the Effectiveness Period by the
number of days  during the period from and  including  the date of the giving of
such notice pursuant to Sections 4.1(a) or 4.1(f) to and including the date when
each  Participating  Holder  shall  have  received  the  re-commencement  notice

                                       9


contemplated  by  Section  4.1(a)  or  copies  of the  supplemented  or  amended
prospectus contemplated by Section 4.1(f); and

        (c)     promptly  notify the  Company  after  effecting  the sale of any
Registrable Securities pursuant to a Registration Statement or otherwise.

        5.2.    Each Holder shall comply at all times with the Company's trading
policy for affiliates,  as such policy may be amended and in effect from time to
time, if, in the opinion of the Company's  counsel,  such Holder is deemed to be
an  affiliate  of the Company as such term is defined in Rule 12b-2  promulgated
under the Exchange Act.

        6.      EXPENSES

        All expenses incident to the Company's performance of or compliance with
the  registration  obligations  set forth in Sections 3 and 4 of this Agreement,
including, without limitation, all registration,  qualification and filing fees,
fees and expenses of compliance  with  securities or "blue sky" laws  (including
fees and  disbursements of counsel in connection with "blue sky"  qualifications
of the  Registrable  Securities),  printing  expenses,  messenger  and  delivery
expenses,  expenses  incurred in connection  with securing and  maintaining  the
listing  of the  Registrable  Securities  on the  NYSE or any  other  securities
exchange on which similar securities issued by the Company are then listed, fees
and  disbursements  of counsel  for the Company  and its  independent  certified
public  accountants  (including  the expenses of any special  audit or "comfort"
letters  required  by or  incident  to such  performance)  will be  borne by the
Company; provided, however, the Company shall not have any obligation to pay the
         --------  -------
fees and disbursements of the Holders' Special Counsel.

        7.      INDEMNIFICATION

                7.1.    Indemnification  by the Company.  The Company  agrees to
                        -------------------------------
indemnify  and hold  harmless,  to the fullest  extent  permitted  by law,  each
Participating Holder and his respective  Affiliates and each Person who controls
(within the meaning of the  Securities  Act) any of such Persons  (collectively,
"Holder  Indemnified  Parties")  from and against  any and all  losses,  claims,
 ----------------------------
damages, expenses (including, without limitation, reasonable fees of counsel) or
other liabilities (collectively,  "Losses") to which any such Holder Indemnified
                                   ------
Party may become  subject  under the  Securities  Act,  Exchange  Act, any other
federal  law,  any state or  common  law or any rule or  regulation  promulgated
thereunder  or otherwise,  insofar as such Losses are resulting  from or arising
out of or based upon any untrue, or alleged untrue, statement of a material fact
contained in any Registration  Statement,  prospectus or preliminary  prospectus
(as amended or supplemented) or any document incorporated by reference in any of
the foregoing or resulting from or arising out of or based upon any omission, or
alleged omission, to state therein a material fact required to be stated therein
or necessary to make the  statements  therein (in the case of a  prospectus,  in
light  of  the  circumstances  under  which  they  were  made)  not  misleading.
Notwithstanding  the  foregoing,  the Company  shall not be liable to any Holder
Indemnified Party for any Losses that arise out of or are based upon (x) written
information  provided by such Holder  Indemnified Party expressly for use in the
Registration  Statement,  (y)  sales  of  Registrable  Securities  by  a  Holder
Indemnified  Party to a person to whom there was not sent or given, at or before
the  written  confirmation  of such sale,  a copy of the  prospectus  (excluding

                                       10


documents  incorporated  by  reference)  or the  prospectus  as then  amended or
supplemented  (excluding documents  incorporated by reference) and the Losses of
such Holder  Indemnified Party resulting from an untrue statement or omission of
a material fact contained in such preliminary  prospectus which was corrected in
the prospectus (or the prospectus as then amended or  supplemented),  or (z) any
offer or sale of Registrable  Securities  during a Blackout Period or during the
period that sales of the Registrable  Securities are required to be discontinued
pursuant  to Section  5.1(b).  Notwithstanding  the  foregoing,  such  indemnity
obligation shall remain in full force and effect regardless of any investigation
made by or on behalf of the Holder  Indemnified  Parties  and shall  survive the
transfer of  Registrable  Securities  by such Holder  Indemnified  Parties.  The
indemnity  contained  contemplated  by this Section 7 shall not apply to amounts
paid in settlement of any such Loss if such  settlement is effected  without the
consent of the Company.

        7.2.    Indemnification  by  the  Participating   Holders.          Each
                -------------------------------------------------
Participating  Holder agrees,  severally and not jointly,  to indemnify and hold
harmless the Company, and its directors, officers, partners, employees, advisors
and agents, their respective Affiliates and each Person who controls (within the
meaning  of the  Securities  Act or  the  Exchange  Act)  any  of  such  Persons
(collectively,  the "Company Indemnified Parties") from any Losses to which such
                     ---------------------------
Company  Indemnified Party may become subject under the Securities Act, Exchange
Act, any other  federal  law, any state or common law or any rule or  regulation
promulgated  thereunder or otherwise,  insofar as such Losses are resulting from
or arising out of or based upon any untrue,  or alleged  untrue,  statement of a
material fact contained in any Registration Statement, prospectus or preliminary
prospectus  (as  amended  or  supplemented)  or  any  document  incorporated  by
reference in any of the  foregoing or resulting  from or arising out of or based
upon any  omission,  or  alleged  omission,  to state  therein a  material  fact
required to be stated  therein or necessary to make the  statements  therein (in
the case of a prospectus,  in light of the  circumstances  under which they were
made),  not  misleading,  but only to the extent that such untrue  statement  or
alleged  untrue  statement,  omission  or  alleged  omission  is  made  in  such
Registration  Statement,  prospectus or preliminary  prospectus in reliance upon
and in  conformity  with written  information  furnished to the Company by or on
behalf of such  Participating  Holder  and  expressly  intended  for use in such
Registration Statement,  prospectus or preliminary  prospectus.  Notwithstanding
the foregoing,  the liability of any Participating Holder under this Section 7.2
shall  be  limited  to  the  amount  of  the  net  proceeds   received  by  such
Participating  Holder in the sale giving rise to such  liability.  The foregoing
indemnity  obligation  shall remain in full force and effect  regardless  of any
investigation made by or on behalf of the Company  Indemnified Parties and shall
survive the transfer of Registrable Securities by such Participating Holder.

        7.3.    Conduct of Indemnification  Proceedings. Any persons entitled to
                ---------------------------------------
indemnification  hereunder (each, an "Indemnified  Party") agrees to give prompt
                                      ------------------
written notice to the indemnifying  party (each, an "Indemnifying  Party") after
                                                     -------------------
the  receipt by such  person of any written  notice of the  commencement  of any
action,  suit,  proceeding  or  investigation  or threat  thereof for which such
person will claim  indemnification  or  contribution  pursuant to this Agreement
(but  the   failure  to  give  such   notice   will  not  affect  the  right  to
indemnification  or  contribution   hereunder  unless  and  to  the  extent  the
Indemnifying   Party  is   materially   prejudiced  by  such  failure)  and  the
Indemnifying Party shall assume the defense thereof, including the employment of
counsel  reasonably  satisfactory to such  Indemnified  Party and payment of all
reasonable fees and expenses (regardless of whether it is ultimately  determined
that an  Indemnified  Party is  entitled  to  indemnification  hereunder).  Such

                                       11


Indemnified  Party shall have the right to employ  separate  counsel in any such
action and participate in the defense thereof, but the fees and expenses of such
counsel shall be at the expense of such Indemnified Party, unless the employment
of such  counsel  shall  have been  specifically  authorized  in  writing by the
Indemnifying  Party,  the  Indemnifying  Party  shall have  failed to assume the
defense and employ counsel  reasonably  satisfactory to the Indemnified Party or
the named parties to any such action  (including any impleaded  parties) include
both such  Indemnified  Party and the  Indemnifying  Party and such  Indemnified
Party  shall  have been  advised by such  counsel  that there may be one or more
legal  defenses  available to it which are different from or additional to those
available to the Indemnifying Party (in which case, the Indemnifying Party shall
not have the  right to  assume  the  defense  of such  action  on behalf of such
Indemnified  Party, it being understood,  however,  that the Indemnifying  Party
shall not, in connection with any one such action, or separate but substantially
similar or  related  actions in the same  jurisdiction  arising  out of the same
general  allegations  or  circumstances,  be liable for the fees and expenses of
more than one separate firm of attorneys (in addition to any local  counsel) for
all such Indemnified Parties, which firm (and local counsel) shall be designated
in writing by the  Indemnified  Parties  and that all such  reasonable  fees and
expenses shall be reimbursed as they are incurred).  An Indemnifying Party shall
not settle, compromise or consent to the entry of any judgment in any proceeding
without the Indemnified Party's prior written consent,  unless the terms of such
settlement,  compromise  or  consent  include an  unconditional  release of each
Indemnified Party from all liability or loss arising out of such proceeding. The
rights afforded to any  Indemnified  Party hereunder shall be in addition to any
rights that such Indemnified Party may have at common law, by separate agreement
or otherwise.

        7.4.    Contribution.
                ------------

        (a)     If for  any  reason  the  indemnification  provided  for in this
Section 7 is unavailable,  or is  insufficient,  to hold harmless an Indemnified
Party  in  respect  of any  Losses,  then  the  Indemnifying  Party,  in lieu of
indemnifying  the  Indemnified  Party,  shall  contribute  to the amount paid or
payable by the  Indemnified  Party as a result of such Losses in such proportion
as is appropriate to reflect the relative fault of the Indemnifying Party on the
one hand and the  Indemnified  Party on the other.  The  relative  fault of such
Indemnifying  Party and  Indemnified  Party shall be determined by reference to,
among other  things,  whether any action in  question,  including  any untrue or
alleged untrue  statement of a material fact or omission or alleged  omission to
state a material fact, was made by, or relates to information  supplied by, such
Indemnifying  Party or  Indemnified  Party,  and the  Indemnifying  Party's  and
Indemnified  Party's  relative  intent,  knowledge,  access to  information  and
opportunity  to correct or prevent such action.  The amount paid or payable by a
Party as a result of the Losses or other liabilities  referred to above shall be
deemed to include, subject to the limitations set forth in Sections 7.1 and 7.2,
any  legal  or other  fees or  expenses  reasonably  incurred  by such  Party in
connection  with any  investigation  or proceeding.  The liability of any Holder
Indemnified  Party under this  Section 7.4 shall be limited to the amount of the
net proceeds received by such Holder Indemnified Party.

        (b)     The  Parties  agree that it would not be just and  equitable  if
contribution pursuant to this Section 7.4 were determined by pro rata allocation
or by any  other  method  of  allocation  which  does  not take  account  of the
equitable  considerations referred to in the immediately preceding paragraph. No
person  guilty of fraudulent  misrepresentation  (within the meaning of 11(f) of

                                       12


the Securities  Act) shall be entitled to  contribution  from any person who was
not guilty of such fraudulent misrepresentation.

        (c)     If  indemnification  is  available  under  this  Section 7, each
Indemnifying  Party shall  indemnify each  Indemnified  Party to the full extent
provided in  Sections  7.1 and 7.2,  as the case may be,  without  regard to the
relative  fault of said  Indemnifying  Party or  Indemnified  Party or any other
equitable consideration provided for in this Section 7.4.

        8.      REMEDIES

        In case any one or more of the covenants and/or  agreements set forth in
this  Agreement  shall  have been  breached  by any Party  hereto,  the Party or
Parties  entitled to the benefit of such covenants or agreements  may, except as
may otherwise be expressly  provided in this  Agreement,  proceed to protect and
enforce  their  rights  either  by suit  in  equity  and/or  by  action  at law,
including,  but not  limited  to, an action for  damages as a result of any such
breach  and/or  an action  for  specific  performance  of any such  covenant  or
agreement  contained in this Agreement.  The rights,  powers and remedies of the
Parties  under this  Agreement  are  cumulative  and not  exclusive of any other
right,  power or remedy which such Parties may have under any other agreement or
law. No single or partial assertion or exercise of any right, power or remedy of
a Party shall preclude any other or further assertion or exercise thereof.

        9.      NOTICES

        Any notice  required or permitted under this Agreement shall be given in
writing  and shall be deemed  effectively  given upon  personal  delivery to the
Party to be notified,  on the next  Business Day after  delivery to a nationally
recognized  overnight courier service,  when sent by confirmed facsimile if sent
during  normal  business  hours of the  recipient,  or if not,  then on the next
Business Day, or five (5) days after deposit with the United States Post Office,
by registered or certified mail, postage prepaid,  and addressed to the Party to
be notified at the address or facsimile  number  indicated below for such party,
or at such other address as such Party may designate  upon written notice to the
other  Parties  (except  that notice of change of address  shall be deemed given
upon receipt).  Telephone  numbers and e-mail  addresses are provided herein for
convenience  only,  and  communications  by  such  means  shall  not  constitute
effective notice hereunder.

        (a)       In the case of the Company:

                  Thor Industries, Inc.
                  419 West Pike Street
                  Jackson Center, Ohio 54334
                  Attn:    President
                  Facsimile:  937-596-6539
                  Telephone:  937-596-6849


                                       13


                  With a copy to:

                  Akin, Gump, Strauss, Hauer & Feld, L.L.P.
                  590 Madison Avenue
                  New York, New York  10022
                  Attn:    Alan Siegel
                           Steven H. Scheinman
                  Facsimile:  212-872-1002
                  Telephone:  212-872-1000
                  Email:   asiegel@akingump.com
                           sscheinman@akingump.com

        (b)       In the case of the Shareholder Representatives:

                  H. Coleman Davis, III
                  c/o Keystone RV Company
                  17400 Hackberry Drive
                  Goshen, Indiana  46526
                  Facsimile:  219-642-3281
                  Telephone:  219-642-1508
                  E-mail: coled@keystonerv.com

                  and

                  Joseph F. Trustey
                  c/o Summit Partners
                  600 Atlantic Avenue
                  Suite 2800
                  Boston, MA  02210
                  Facsimile: 617-824-1100
                  Telephone: 617-824-1000
                  E-mail: jtrustey@summitpartners.com

                  In each case, with a copy to:

                  Hutchins, Wheeler & Ditmar
                  A Professional Corporation
                  101 Federal Street
                  Boston, Massachusetts 02110
                  Attn:    James Westra, Esq.
                           Marilyn French, Esq.
                  Fascimile:  617-951-1295
                  Telephone:  617-951-6600
                  Email:   jxw@hutch.com
                           mxf@hutch.com

                  (c)    In the case of the Holders,  at the addresses set forth
on the signature pages attached hereto.

                                       14


        10.     MISCELLANEOUS

        10.1.   Entire Agreement.    This  Agreement,  together  with the  Stock
                ----------------
Restriction Agreement and the Merger Agreement, constitutes the entire agreement
between the Parties with respect to the subject matter hereof and supersedes all
prior agreements and  understandings,  written or oral, between the Parties with
respect to the subject matter hereof.

        10.2.   Amendments and Waivers.   Any  term  of  this  Agreement  may be
                ----------------------
amended and the  observance of any term of this  Agreement may be waived (either
generally   or  in  a   particular   instance   and  either   retroactively   or
prospectively), only by an instrument in writing and signed by the Party against
whom such amendment or waiver is sought to be enforced.  The waiver by any Party
of a breach of any provision of this Agreement shall not operate or be construed
as a further or continuing  waiver of such breach or as a waiver of any other or
subsequent breach. No failure on the part of any Party to exercise, and no delay
in exercising,  any right,  power or remedy  hereunder shall operate as a waiver
thereof, nor shall any single or partial exercise of such right, power or remedy
by any Party preclude any other or further  exercise  thereof or the exercise of
any other right, power or remedy.

        10.3.   Successors and Assigns.   Subject to the  transfer  restrictions
                ----------------------
set forth herein,  the terms and conditions of this Agreement shall inure to the
benefit of and be binding  upon the  respective  successors  and  assigns of the
Parties; provided, however, the Holders may not transfer any of the registration
rights granted hereunder with respect to any Registrable Securities,  except (a)
in  connection  with the  Disposition  of such  Registrable  Securities  (and if
applicable,  in  accordance  with the Stock  Restriction  Agreement)  and (b) in
compliance  with the following  conditions:  (i) the  transferee  shall agree in
writing that it is bound by the terms of this Agreement and, if applicable,  the
Stock Restriction  Agreement and the Escrow  Agreement,  and (ii) the Company is
given prompt written notice by such Holder of such Disposition, stating the name
and  address  of the  transferee  and  identifying  the  number  of  Registrable
Securities that are the subject of the transfer.

        10.4.   Governing Law.    This Agreement,  including the validity hereof
                -------------
and the rights and obligations of the Parties hereunder,  the performance of the
transactions  and obligations of the Parties  hereunder,  and all amendments and
supplements hereof and all waivers and consents hereunder, shall be construed in
accordance  with and governed by the domestic  substantive  laws of the State of
New  York  without  giving  effect  to any  choice  of law or  conflicts  of law
provision or rule that would cause the  application of the domestic  substantive
laws of any other jurisdiction.

        10.5.   Severability.     If any provisions of this Agreement as applied
                ------------
to any Party or to any  circumstance  shall be adjudged by a court to be invalid
or  unenforceable,  the same shall in no way affect any other  provision of this
Agreement,  the application of such provision in any other  circumstances or the
validity or enforceability of this Agreement.

        10.6.   Captions.   The headings and captions used in this Agreement are
                --------
used for convenience only and are not to be considered in

construing or interpreting this Agreement.

                                       15


        10.7.   Counterparts.   This Agreement may be executed in  counterparts,
                ------------
each of which  shall be  deemed an  original,  but all of which  together  shall
constitute one and the same instrument.

        10.8.   Several  Obligations.   The  obligations  of the Holders  herein
                --------------------
are several and not joint. No Holder shall be responsible for the performance or
failure on the part of any other Holder to perform  his, her or its  obligations
hereunder.

        10.9.   Interpretation.   This Agreement  shall be construed  reasonably
                --------------
to carry out its intent without presumption against or in favor of any Party.

        10.10.  Consent to Jurisdiction and Service of Process. Each Holder, for
                ----------------------------------------------
itself,its  personal  representatives,   legatees,  heirs  and  assigns,  hereby
consents to the personal  jurisdiction  of the courts of the County and State of
New York and of the United States  District  Court for the Southern  District of
New York, each as may have competent  jurisdiction,  with respect to any dispute
or  controversy  arising under or in connection  with this  Agreement and agrees
that  process  issued out of any such court or in  accordance  with the rules of
practice  of such  court  may be  served  by mail or other  form of  substituted
service to such Holder at its address as provided  herein,  and that any actions
therein may be consolidated  in a single action.  Each Holder also agrees not to
bring any  dispute  or  controversy  arising  under or in  connection  with this
Agreement in any other  court.  Each Holder  waives any defense of  inconvenient
forum to the maintenance of any dispute or controversy so brought and waives any
bond,  surety,  or other security that may be required of any other party hereto
with respect to such dispute or controversy.  Nothing  contained herein shall be
deemed to prevent the Company from effecting  service of process upon any Holder
in any other manner  permitted by law or from commencing any action in any other
court having competent jurisdiction.

        10.11.  Certain References.      Whenever the context may  require,  any
                ------------------
pronoun  used in this  Agreement  shall  include  the  corresponding  masculine,
feminine or neuter  forms,  and the singular  form of nouns,  pronouns and verbs
shall  include  the plural  and vice  versa.  The terms  "herein",  "hereof"  or
"hereunder"  or similar  terms as used in this  Agreement  refer to this  entire
Agreement and not to the particular  provision in which the term is used. Unless
otherwise  stated,  all  references  herein to  Sections,  subsections  or other
provisions are references to Sections,  subsections or other  provisions of this
Agreement.



                                       16



                IN WITNESS  WHEREOF,  the Parties  hereto have entered into this
Agreement as of the date first written above.


COMPANY:                                    THOR INDUSTRIES, INC.


                                            By: /s/ Wade F. B. Thompson
                                                --------------------------------
                                                Name: Wade F. B. Thompson
                                                Title: President

SHAREHOLDERS:                               SUMMIT INVESTORS III, L.P.


                                            By: /s/ Joseph F. Trustey
                                                --------------------------------
                                                Name:        Joseph F. Trustey
                                                Title:       General Partner


                                            SUMMIT VENTURES V, L.P.

                                            By:  Summit Partners V, L.P.
                                                 Its General Partner


                                            By:  Summit Partners, LLC
                                                 Its General Partner


                                            By: /s/ Joseph F. Trustey
                                                --------------------------------
                                                Name:        Joseph F. Trustey
                                                Title:       Member


                                            SUMMIT V ADVISORS FUND, L.P.

                                            By:  Summit Partners, LLC
                                                 Its General Partner


                                            By: /s/ Joseph F. Trustey
                                                --------------------------------
                                                Name:        Joseph F. Trustey
                                                Title:       Member





                                            SUMMIT V ADVISORS FUND (QP), L.P.

                                            By:  Summit Partners, LLC
                                                 Its General Partner


                                            By: /s/ Joseph F. Trustey
                                                --------------------------------
                                                Name:        Joseph F. Trustey
                                                Title:       Member


                                            SUMMIT V COMPANION FUND, L.P.

                                            By:  Summit Partners V, L.P.
                                                 Its General Partner


                                            By:  Summit Partners, LLC
                                                 Its General Partner


                                            By: /s/ Joseph F. Trustey
                                                --------------------------------
                                                Name:        Joseph F. Trustey
                                                Title:       Member


                                            Address for the Summit Shareholders:
                                                  c/o Summit Partners
                                                  600 Atlantic Avenue
                                                  Suite 2800
                                                  Boston, MA 02210



                                                /s/ H. Coleman Davis, III
                                                --------------------------------
                                                H. Coleman Davis, III
                                                Address:     3819 Augusta Lane
                                                             Elkhart, IN  46517






                                                /s/ Ronald J. Fenech
                                                -------------------------------
                                                Ronald J. Fenech
                                                Address:   11390 CR 14
                                                           Middlebury, IN  46540



                                                /s/ William C. Fenech
                                                --------------------------------
                                                William C. Fenech
                                                Address: 57119 Bluff Crest Drive
                                                         Elkhart, IN  46514



                                                /s/ Robert E. Gaff, Jr.
                                                --------------------------------
                                                Robert E. Gaff, Jr.
                                                Address:     54729 Streeter Lane
                                                             Elkhart, IN  46514



                                                /s/ Tonja Lucchese
                                                --------------------------------
                                                Tonja Lucchese
                                                Address:   53601 Arrowwood Drive
                                                           Elkhart, IN  46514



                                                /s/ Kim M. Price
                                                --------------------------------
                                                Kim M. Price
                                                Address:     51332 Forest Road
                                                             Elkhart, IN  46514



                                                /s/ Douglas Rheinheimer
                                                --------------------------------
                                                Douglas Rheinheimer
                                                Address:     11772 W. 400 S.
                                                             Elkhart, IN  46514


                                                /s/ James R. Brotherson
                                                --------------------------------
                                                James R. Brotherson
                                                Address:    1815 Greenleaf Blvd.
                                                            Elkhart, IN  46514

                                                /s/ Donald J. Clark
                                                --------------------------------
                                                Donald J. Clark
                                                Address:     71301 Dawn Drive
                                                             Union, MI 49310