Exhibit 10.12
                         STOCK CONTRIBUTION AGREEMENT


          This Stock Contribution Agreement (the "Agreement"), dated as of
August 27, 1998, is by and among the parties identified on the signature page
hereto (collectively, the "Stockholders") and City Truck Holdings, Inc., a
Delaware corporation ("Holdings").

                                    RECITALS
                                    --------

          A.     Each of the Stockholders owns shares of Common Stock, par
value $.01 per share ("Company Common Stock"), and Series B Preferred Stock, par
value $.01 per share ("Company Series B Preferred Stock," and, together with
Company Common Stock, "Company Stock"), of HDA Parts System, Inc., an Alabama
corporation (the "Company").

          B.     The parties to this Agreement desire that each of the
Stockholders contribute, upon the terms and subject to the conditions of this
Agreement, all of his or its shares of Company Common Stock and Company Series B
Preferred Stock to Holdings in exchange for an equal number of shares of Common
Stock, par value $.01 per share, of Holdings ("Holdings Common Stock, and Series
A Preferred Stock, par value $.01 per share, of Holdings ("Holdings Series A
Preferred Stock," and, together with Holdings Common Stock, "Holdings Stock").

                                   AGREEMENT
                                   ---------

          NOW, THEREFORE, in consideration of the mutual covenants and promises
contained herein and for other good and valuable consideration, the receipt and
adequacy of which is hereby acknowledged, the parties hereto agree as follows:

          1.     Contribution of Common Stock.  Upon the terms and subject to
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the conditions contained herein, each of the Stockholders, severally and not
jointly, agrees to contribute and deliver to Holdings that number of shares of
Company Stock and Company Series B Preferred Stock owned by him or it, in
exchange for an equal number of shares of Holdings Common Stock and Holdings
Series A Preferred Stock.  Such contribution shall be made at such place and
time as Holdings may designate.

          Furthermore, to the extent any Stockholder is entitled to acquire
additional shares of Company Stock such Stockholder hereby agrees that he will
accept in lieu thereof, subject to the conditions of this Agreement, the
Holdings Stockholders' Agreement (as defined below) and any applicable stock
purchase agreement, an equivalent number of shares of Holdings Common Stock
and/or Holdings Series A Preferred Stock.

          2.     Ownership of Company Common Stock.  Each Stockholder represents
                 ---------------------------------                   
and warrants, severally and not jointly:

          (a) Such Stockholder owns beneficially and of record, and has
marketable title to, the Company Stock being contributed by him or it, free and
clear of all Encumbrances (excluding the obligations of each Stockholder under
the Stockholders' Agreement (as defined)), and such Stockholder has full right,
power and authority to contribute all of such shares of Company Stock to
Holdings. As used in this Agreement, "Encumbrance"

 
means any claim, lien, pledge, option, charge, security interest, conditional
sales agreement or other right of third parties, whether voluntarily incurred or
arising by operation of law, and includes, without limitation, any agreement to
give any of the foregoing in the future, and any contingent sale or other title
retention agreement in the nature thereof.

          (b) Such Stockholder has no commitment or legal obligation, absolute
or contingent, to any other person or firm other than Holdings to, directly or
indirectly, sell, assign, transfer or effect a sale of any shares of Company
Stock owned by such Stockholder, or to enter into any agreement or cause the
entering into of an agreement with respect to any of the foregoing (excluding
the obligations of each Stockholder under the Stockholders' Agreement).

          (c) Authorization.  Such Stockholder has full power and authority to
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execute, deliver and perform its obligations under this Agreement.  The
execution and delivery of this Agreement has been duly and validly authorized,
and all necessary action has been taken, to make this Agreement a valid and
binding obligation of such Stockholder, enforceable in accordance with its
terms, except that the enforcement thereof may be subject to bankruptcy,
insolvency, reorganization, moratorium or other similar laws now or hereafter in
effect relating to creditors' rights generally and to general principles of
equity (regardless of whether such enforcement is considered in a proceeding in
equity or at law).

          (d) Receipt of Information.  Such Stockholder has received and
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reviewed this Agreement and all exhibits and schedules hereto; and the
Stockholder has received all such information as it deems necessary and
appropriate to enable it to evaluate the financial risk inherent in making an
investment in Holdings Stock and has received satisfactory and complete
information concerning the business and financial condition of Holdings in
response to all inquiries in respect thereof.

          3.     Existing Agreements.  Upon the terms and subject to the
                 -------------------                                    
conditions contained herein each of the parties hereto agrees that all existing
stock purchase agreements relating to the Stockholders' ownership of Company
Stock shall remain in effect with respect to the Stockholders' ownership of
Holdings Stock as if such Holdings Stock were the Company Stock referred to
therein and as if Holdings were named as the Company therein.

          4.     Holdings Stockholders' Agreement.  Each Stockholder agrees
                 --------------------------------                          
that, as a condition to receipt of Holdings Stock in exchange for his or its
contribution of Company Stock to Holdings, such Stockholder will become a party
to Holdings Stockholders' Agreement (the "Holdings Stockholders Agreement") in
the form attached as Exhibit A.  The Holdings Stockholders' Agreement is
identical in all respects to the Company's Amended and Restated Stockholders'
Agreement except for (i) the name of Holdings in lieu of the name of the
Company, (ii) references to Holdings Series A Preferred Stock replace and are in
lieu of references to any shares of preferred stock of the Company, (iii) a new
provision regarding prompt notice of any amendment to the Stockholders'
Agreement to each stockholder who has not yet consented in writing; and (iv) a
new provision regarding expiration of registration rights in cases where the
shares of Holdings are sold pursuant to a registration statement or Rule 144 of
the Act (as defined) or are eligible for sale under Rule 144.  The Holdings
Stockholders' Agreement supersedes the Amended and Restated Stockholders
Agreement of the Company in

                                       2

 
all respects. A Stockholders' signature on this Agreement shall also
constitute his or its execution of the Holdings Stockholders' Agreement.

          5.     Investment Representations; Securities Laws.  Each Stockholder
                 -------------------------------------------       
hereby represents and warrants to Holdings and to each other Stockholder as
follows:

               (a) The Stockholder is acquiring Holdings Stock to be acquired
     hereunder for investment, for its own account, and not as a nominee or
     agent for any other person, firm or corporation, and not with a view to the
     sale or distribution of all or any part thereof, and it has no present
     intention of selling, granting participation in, or otherwise distributing
     any of the Holdings Stock.  The Stockholder does not have any contract,
     undertaking, agreement or arrangement with any person, firm or corporation
     to sell, transfer or grant participation to such person, firm or
     corporation, with respect to any of the Holdings Stock.

               (b) The Stockholder understands that the Holdings Stock will not
     be registered under the Securities Act of 1933, as amended (the "Act"), in
     part based upon an exemption from the registration predicated on the
     accuracy and completeness of its representations and warranties appearing
     herein.  The Stockholder understands and acknowledges that, as a result, it
     will not be permitted to sell, transfer or assign any shares of the
     Holdings Stock until they are registered or an exemption from the
     registration and prospectus delivery requirements of the Act is available.
     The Stockholder acknowledges that there is no assurance that such an
     exemption from registration will ever be available or that the Holdings
     Stock will ever be able to be sold.

               (c) The Stockholder does not require the assistance of an
     investment advisor or other purchaser representative to participate in the
     transactions contemplated by this Agreement, has such knowledge and
     experience in financial and business matters as to be capable of evaluating
     the merits and risks of its investment in Holdings, has the ability to bear
     the economic risks of its investment for an indefinite period of time and
     has been furnished with and has had access to such information as would be
     made available in the form of a registration statement under the Act
     together with such additional information as is necessary to verify the
     accuracy of the information supplied and to have all questions answered by
     Holdings.

          6.     Further Assurances.  Upon the terms and subject to the
                 ------------------                                    
conditions contained herein, each of the parties hereto agrees, (a) to use all
reasonable efforts to take, or cause to be taken, all actions and to do, or
cause to be done, all things necessary, proper or advisable to consummate and
make effective and transactions contemplated by this Agreement, (b) to execute
any documents, instruments or conveyances of any kind which may be reasonably
necessary or advisable to carry out any of the transactions contemplated
hereunder, and (c) to cooperate with each other in connection with the
foregoing.

          7.     Legends.  All certificates evidencing the shares of Holdings
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Stock transferred to the Stockholders hereunder shall bear substantially the
following legends:

                                       3

 
               a.   "The securities represented by this certificate have not
     been registered under the Securities Act of 1933, as amended (the "Act").
     These securities have been acquired for investment and not with a view to
     distribution or resale, and may not be sold, offered for sale, pledged or
     hypothecated in the absence of an effective registration statement for such
     shares under the Act or an opinion of counsel satisfactory in form and
     content to the issuer that such registration is not required under such
     Act."

               b.   "The securities represented by this certificate are subject
     to the provisions of a Stockholders' Agreement and may not be pledged,
     hypothecated, encumbered or transferred, sold or otherwise disposed of,
     except as therein provided.  A copy of such agreement is on file at the
     office of the Company."

          8.     Notices.  All notices, requests, consents and other
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communications required or permitted hereunder shall be in writing and shall be
deemed to have been duly given and made and served either by personal delivery
to the person for whom it is intended or if deposited, postage prepaid,
registered or certified mail, return receipt requested, in the United States
mail:

               a.   if to any Stockholder, addressed to such Stockholder at its
     address shown on the stock register maintained by Holdings, or at such
     other address as such Stockholder may specify by written notice to
     Holdings, or

               b.   if to Holdings, at c/o HDA Parts Systems, Inc., 520 Lake
     Cook Road, Deerfield, Illinois, Attention: John Greisch, or at such other
     address as Holdings may specify by written notice to the Stockholders, with
     a copy to Christopher A. Laurence, Brentwood Associates, 11150 Santa Monica
     Boulevard, Suite 1200, Los Angeles, California 90025

Each such notice, request, consent or other communication shall be deemed to
have been given upon receipt thereof or, if sooner, five (5) days after such has
been deposited as described above.  The address for the purposes of this Section
8, may be changed by giving written notice of such change in the manner provided
herein for giving notice.  Unless and until such written notice is received, the
address provided herein shall be deemed to continue in effect for all purposes
hereunder.

          9.     Severability.  The parties hereto agree that the terms and
                 ------------                                              
provisions in this Agreement are reasonable and shall be binding and enforceable
in accordance with the terms hereof and, in any event, that the terms and
provisions of this Agreement shall be enforced to the fullest extent permissible
under law.  In the event that any term or provision of this Agreement shall for
any reason be adjudged to be unenforceable or invalid, then such unenforceable
or invalid term or provision shall not affect the enforceability or validity of
the remaining terms and provisions of this Agreement, and the parties hereto
hereby agree to replace such unenforceable or invalid term or provision with an
enforceable and valid arrangement which in its economic effect shall be as close
as possible to the unenforceable or invalid term or provision.

                                       4

 
          10.    Parties in Interest.  All the terms and provisions of this
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Agreement shall be binding upon and inure to the benefit of and be enforceable
by the respective successors and assigns of the parties hereto, whether so
expressed or not.

          11.    Modification, Amendment and Waiver.  No modification,
                 ----------------------------------                   
amendment or waiver of any provision of this Agreement shall be effective
against Holdings or any Stockholder unless approved in writing, by such party
and Holdings.  The failure at any time to enforce any of the provisions of this
Agreement shall in no way be construed as a waiver of such provisions and shall
not affect the right of any of the parties thereafter to enforce each and every
provision hereof in accordance with its terms.

          12.    Integration.  This Agreement, together with Exhibit A
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hereto, constitutes the entire agreement of the parties with respect to the
subject matter hereof and thereof, and, except as expressly indicated herein,
supersedes all prior agreements related to said subject matter.

          13.    Headings and Pronouns.  The headings of the sections and
                 ---------------------                                   
paragraphs of this Agreement have been inserted for convenience of reference
only and do not constitute a part of this Agreement.  Whenever used herein,
words importing the singular shall include the plural and words importing the
masculine shall include the feminine and neuter, and vice versa, unless the
context otherwise requires.

          14.    Choice of Law.  This Agreement shall be construed,
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interpreted and the rights of the parties determined in accordance with the laws
of the State of Delaware (without reference to the choice of law provisions of
Delaware law).

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

                                       5

 
          IN WITNESS WHEREOF, the parties have caused this Stock Contribution
Agreement (and, by execution hereof, the Stockholders' Agreement of Holdings) of
even date herewith, to be duly executed as of the day and year first above
written.

                                 CITY TRUCK HOLDINGS, INC.


                                 By: /s/ John J. Greisch
                                    --------------------------------------
                                    John J. Greisch
                                    President and Chief Executive Officer


                                 BABF CITY CORP.


                                 By: /s/ Christopher A. Laurence 
                                    --------------------------------------
                                    Christopher A. Laurence
                                    President


                                 THE DELTON LANE CLAYTON TRUST
                                 dated November 1, 1990


                                 By: /s/ Neil Bailey
                                    --------------------------------------
                                    Neil Bailey as Trustee



                                 THE DIEDRA ELAINE CLAYTON TRUST
                                 dated November 1, 1990


                                 By: /s/ Neil Bailey
                                    --------------------------------------
                                    Neil Bailey as Trustee


                                 THE WILLIAM LARRY CLAYTON 
                                 GRANDCHILDREN'S TRUST
                                 dated April 30, 1997


                                 By: /s/ Neil Bailey
                                    --------------------------------------
                                    Neil Bailey as Trustee

                                       6

 
                                     /s/ William L. Clayton
                                    --------------------------------------
                                    WILLIAM L. CLAYTON
                                        

                                     /s/ Charles Roy Johnson
                                    --------------------------------------
                                    CHARLES ROY JOHNSON


                                     /s/ James T. Stone
                                     --------------------------------------
                                     JAMES T. STONE

                                   
                                    /s/ Fred A. Stone Jr. 
                                    --------------------------------------
                                    FRED A. STONE, JR.


                                 DLJ FUND INVESTMENT PARTNERS II, L.P.

                                 By:  DLJ LBO Funds Management Corporation
                                      general partner


                                 By: /s/ Ivy Dedes
                                    --------------------------------------
                                    Name: Ivy Dedes
                                    Title: Vice President



                                 BANKAMERICA INVESTMENT CORPORATION


                                 By: /s/ Dennis P. McCrary
                                    --------------------------------------
                                    Name:
                                    Title:



                                 MIG PARTNERS VII


                                 By: /s/ Dennis P. McCrary
                                    --------------------------------------
                                    Name:
                                    Title:

                                       7

 
                                THE 311 FUND, LLC



                                By: /s/ Robert C. Byczek
                                    --------------------------------------
                                    Name: Robert C. Byczek
                                    Title: Managing Director


                                    /s/ A. Keith McLemore 
                                    --------------------------------------
                                    A. KEITH MCLEMORE



                                    /s/ John J. Greisch
                                    --------------------------------------
                                    JOHN J. GREISCH


                                    /s/ John P. Miller
                                    --------------------------------------
                                    JOHN P. MILLER

                                       8

 
                                   EXHIBIT A


                    FORM OF STOCKHOLDERS' AGREEMENT OF CITY
                              TRUCK HOLDINGS, INC.