AMENDMENT NO. 1
                                       TO
                             1996 TEREX CORPORATION
                            LONG-TERM INCENTIVE PLAN


         WHEREAS,   the   Board  of   Directors   of  Terex   Corporation   (the
"Corporation")  adopted the 1996 Terex Corporation Long-Term Incentive Plan (the
"Plan") on December 13, 1995, which Plan was ratified by the stockholders of the
Corporation on April 5, 1996;

         WHEREAS,  on May 8, 1997 the  stockholders of the Corporation  approved
(i) an  amendment  to Section 5.2 of the Plan to  increase  the shares of Common
Stock available from 300,000 shares to 1,000,000 shares and (ii) an amendment to
the Plan to permit the Committee to grant Performance Awards;

         WHEREAS,  on May 19,  1997 the Board of  Directors  of the  Corporation
approved an  amendment to the  definition  of the term "Change of Control of the
Corporation" as used in the Plan.

         NOW, THEREFORE, the Plan is amended as follows:

1.       The  definition of "Change of Control of the Corporation"  contained in
Section 2.1 of the Plan is amended in its entirety to read as follows:

                  "2.1     A "Change in Control of the Corporation" shall mean:

                         (i) the sale, assignment, lease, transfer or conveyance
                    (in one transaction or a series of  transactions)  of all or
                    substantially all of the Corporation's assets;

                         (ii) the  Corporation  shall be merged or  consolidated
                    with another corporation,  and as a result of such merger or
                    consolidation   either  (a)  the   Corporation  is  not  the
                    continuing or surviving  corporation or (b) less than 51% of
                    the  outstanding  voting  securities  of  the  surviving  or
                    resulting corporation shall be owned in the aggregate by the
                    shareholders  of the Corporation  immediately  prior to such
                    merger or consolidation;

                         (iii) the liquidation or dissolution of the Corporation
                    or  the  adoption  of a  plan  by  the  stockholders  of the
                    Corporation  relating to the  dissolution  or liquidation of
                    the Corporation;

                         (iv) the  acquisition  by any  person or group (as such
                    term is used in Section 13(d)(3) of the Securities  Exchange
                    Act of 1934, as amended) of a direct or indirect majority in
                    interest (more than 50%) of the voting power of the Stock of
                    the Corporation by way of purchase,  merger or consolidation
                    or otherwise, or

                         (v)  during  any  period  of  two  consecutive   years,
                    individuals who at the beginning of such period  constituted
                    the Board of Directors of the  Corporation  (which  includes
                    any new directors  whose election by such Board of Directors
                    or whose  nomination for election by the stockholders of the
                    Corporation  was  approved  by a vote of at least 66 2/3% of
                    the directors then still in office who were either directors
                    at the  beginning  of  such  period  or  whose  election  or
                    nomination  for election was  previously so approved)  cease
                    for any  reason to  constitute  a  majority  of the Board of
                    Directors of the Corporation.

                         For purposes of this  Section  2.1,  the term  "person"
                    shall mean any individual,  corporation,  partnership, joint
                    venture,   association,    joint   stock   company,   trust,
                    unincorporated  organization,  government  or any  agency or
                    political subdivision thereof, or any other entity.

                         For  purposes  of  Section  2.1,  the rules of  Section
                    318(a)  of the Code and the  regulations  issued  thereunder
                    shall be used to determine stock ownership."

2. Section 5.2 of the Plan is amended in its entirety to read as follows:

                         "5.2  Maximum  Amount  Available.  The total  number of
                    shares  of  Stock  (including   Restricted  Stock,  if  any)
                    optioned  or granted  under this Plan during the term of the
                    Plan shall not exceed  1,000,000  shares except as increased
                    or  otherwise  adjusted in  accordance  with Section 5.3. No
                    Participant may be granted,  in the aggregate,  awards which
                    would result in the  Participant  receiving more than 20% of
                    the maximum  number of shares  available for award under the
                    Plan.  Solely for the purpose of computing  the total number
                    of shares of Stock  optioned  or  granted  under  this Plan,
                    there  shall  not be  counted  any  shares  which  have been
                    forfeited  if  the  Participant   received  no  benefits  of
                    ownership from the Stock and any shares covered by an option
                    which,   prior  to  such  computation,   has  terminated  in
                    accordance  with  its  terms  or has  been  canceled  by the
                    Participant or the Corporation."

3. ARTICLE VIII of the Plan is amended in its entirety to read as follows:

                                  "ARTICLE VIII

                               Performance Awards

                         The Committee may grant, either alone or in addition to
                    other awards  granted under the Plan,  cash bonuses or other
                    awards,  including Stock Options and Restricted Stock, based
                    on  performance  measures  ("Performance  Awards")  to  such
                    Participants as the Committee,  or the Chairman,  President,
                    Executive Vice President and Chief Financial Officer (acting
                    as a group)  of the  Corporation,  if the  Committee  in its
                    discretion  delegates the right to allocate  awards pursuant
                    to  Section  4,  authorizes  and  under  such  terms  as the
                    Committee  establishes.  With respect to certain Performance
                    Awards  which the  Committee  intends to  qualify  for a tax
                    deduction  ("Qualifying  Performance Awards"), the Committee
                    shall establish  targets only in terms of one or more of the
                    following objective measures:  Common Stock price,  earnings
                    per share, total shareholder  return,  return on investment,
                    cost  control,   working  capital,   cash  flow  management,
                    operating  income,  gross or  operating  margins,  cash flow
                    margins, revenue growth, management development,  succession
                    planning,  earnings  before  interest  and  taxes,  earnings
                    before interest, taxes,  depreciation and amortization,  net
                    income,  market  share,  customer  satisfaction  or employee
                    satisfaction.   If  the   Committee   does  not  desire  the
                    Performance  Award  to  qualify  for  a tax  deduction,  the
                    measures  of   performance   or  other   criteria  for  such
                    Performance  Awards shall be established by the Committee in
                    its  absolute  discretion.   Performance  Awards,  including
                    Qualifying Performance Awards, may be paid in cash, by grant
                    of Stock  Options or  Restricted  Stock or any other form of
                    property  as  the  Committee  shall  determine.  Performance
                    Awards  shall  entitle  the  Participant  to receive up to a
                    maximum of 100% of the Performance  Award if the measures of
                    performance  established  by  the  Committee  are  met.  The
                    Committee  shall  determine  the times at which  Performance
                    Awards  are to be made and all  conditions  of such  awards.
                    Performance  Awards  shall  be  subject  to  any  applicable
                    federal,  state or local  withholding  tax  requirements.  A
                    Participant  may not receive more than three (3) Performance
                    Awards  in a  single  pay  period.  The  maximum  amount  of
                    Qualifying  Performance  Awards  that may be  granted to any
                    Participant  with respect to each  calendar year (whether or
                    not then vested)  cannot exceed ten times the  Participant's
                    annual salary.  Qualifying  Performance Awards shall be made
                    in a manner that  satisfies  Section  162(m) of the Internal
                    Revenue Code of 1986, as amended."

4. Except as expressly set forth in this  Amendment No. 1 to the Plan,  the Plan
shall remain unchanged and in full force and effect.