**Exhibit 10.6**

 

Confidential Pricing Information Omitted: Certain pricing informationhas been omitted from this agreement pursuant to a request for confidentialtreatment filed with the Securities and Exchange Commission. Such omissions inthis agreement are marked with the symbol $***. The confidential informationhas been filed separately with the Securities and Exchange Commission.

 
| **AMENDMENT OF  SOLICITATION/MODIFICATION OF CONTRACT**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | **1.****        ****Contract ID Code**Firm-Fixed-Price | Page  1 of 74                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| **2. Amendment/Modification No.**P00048                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | **3. Effective Date**2005 Mar 23                                                               | **4. Requisition/Purchase Req.  No.**

SEE  SCHEDULE                                                                  | **5. Project NO. (If Applicable)** |
| **6.****        ****Issued By**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | **Code**                                                                                       | W56H2V                                                                                                                | ** ** | **7.****        ****Administered By (If other than  Item 6)**DCMA STEWART &  STEVENSON

SEALY

P.O. BOX 457  SEALY, TX 77474-0457  |   | Code | S4807A |
|  TACOM WARREN                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | ** **                                                                                     |                                                                                                                  | ** ** |   |
|  AMSTA-AQ-ATBB                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | ** **                                                                                     | ** **                                                                                                            | ** ** |   |
|  AMES VICTOR (586) 574-7924                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | ** **                                                                                     | ** **                                                                                                            | ** ** |   |
|  WARREN, MICHIGAN  48397-5000                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | ** **                                                                                     | ** **                                                                                                            | ** ** |   |
| ** **                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | ** **                                                                                     | ** **                                                                                                            | ** ** |   |
| HTTP://CONTRACTIN.TACOM.ARMY.MIL                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | ** **                                                                                     | ** **                                                                                                            |   |
| EMAIL:  VICTORJ@TACOM.ARMY.MIL                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | ** **                                                                                     |                                                                                                                  | ** ** |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | ** **                                                                                     | **SCD**                                                                                                               | A | **PAS** | NONE | **ADP PT** |   | NQ339 |   |   |
| **8.****        ****Name and Address of Contractor  (No., Street, City, County, State  and Zip Code)**STEWART & STEVENON  TACTICAL VEHICLE SYSTEMS, LP  5000 I-10 WEST  SEALY, TX 77474-9506                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | **o**                                                                                          | **9A. Amendment of Solicitation No.**                                                                                 |
| ** **                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| ** **                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| ** **                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | **9B. Dated (See Item 11)**                                                                    |
| **ý**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | **10A. Modification of Contract/Order No.**DAAE07-03-C-S023                                    |
| ** **                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| ** **                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| **TYPE OF BUSINESS:**Large Business Performing in U.S.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | ** **                                                                                     | **10B. Dated (See Item 13)**                                                                                          |   |   |
| **Code:**OFW39                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | **Facility Code**                                                                              | ** **                                                                                                            | 2003APR17 |   |   |   |   |
| **11. THIS ITEM ONLY APPLIES TO  AMENDMENTS OF SOLICITATIONS**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| **o****The above numbered  solicitation is amended as set forth in item 14. The hour and date specified  for receipt of Offers****o****Is extended,****o****is not extended.**

**Offers must acknowledge receipt  of this amendment prior to the hour and date specified in the solicitation or  as amended by one of the following methods: (a) By completing items 8  and 15, and returning ____________ copies of the amendments; (b) By  acknowledging receipt of this amendment on each copy of the offer submitted;  or (c) By separate letter or telegram which includes a reference to the  solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE  RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR  AND DATE SPECIFIED MAY RESULT IN REGECTION OF YOUR OFFER. If by virtue  of this amendment you desire to change an offer already submitted, such  change may be made by telegram or letter, provided each telegram or letter  makes reference to the solicitation and this amendment, and is received prior  to the opening hour and date specified.** |
| **12. Accounting And Appropriation Data (If required)**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| ** **                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| **13. THIS ITEM ONLY APPLIES TO  MODIFICATIONS OF CONTRACTS/ORDERS  It Modifies the Contract/Order No. As Described in Item 14**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| **o**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | ** **                                                                                     | **A.**                                                                                                                | **This Change Order is Issued Pursuant To:  The Changes Set Forth In Item 14 Are Made  In**  **The  Contract/Order** |
| ** **                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | **No. In Item 10A.**                                                                      |
| **o**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | ** **                                                                                     | **B.**                                                                                                                | **The Above Numbered Contract/Order Is Modified to Reflect The  Administrative Changes (such as changes in paying office, appropriation data,  etc.) Set forth In Item 14, Pursuant To The Authority of FAR43.103(b).** |
| **ý**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | ** **                                                                                     | **C.**                                                                                                                | **This Supplemental Agreement Is Entered Into Pursuant To Authority Of:**Mutual Agreement |
| **o**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | ** **                                                                                     | **D.**                                                                                                                | **Other (Specify type of modification and authority)** |
| ** **                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | ** **                                                                                     | ** **                                                                                                            |
| **E. IMPORTANT:  Contractor****o****is not,****ý****is required to sign this  document and return __________ copies to the Issuing Office.**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| ** **                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| **14. Description of Amendment/Modification (Organized by UCF section headings,  including solicitation/contract subject matter where feasible.)**

SEE SECOND PAGE FOR DESCRIPTION

 

Contract Expiration Date:  2008NOV15 

 

**Except as provided herein, all terms and conditions of the document  referenced in item 9A or 10A, as heretofore changed, remains unchanged and in  full force and effect**.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| **15A. Name And Title of Signer  (Type or print)**Chet Loomis  Vice President of Contracts                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | ** **                                                                                     | **16A. Name and Title of  Contracting Officer (Type or print)**DENISE MIKA  MIKAD@TACOM.ARMY.MIL  (586) 574-6506 |
| **15B. Contractor/Offeror**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | ** **                                                                                     | **15C. Date Signed**                                                                                                  | ** ** | **16B. United State of America** | ** ** | **16C. Date Signed** |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                           |                                                                                                                  |   |   |   |   |
| SS//                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | ** **                                                                                     |                                                                                                                  | 23 MAR 2005 |   | SS// |   | 2005 MAR 23 |
| **(Signature of person authorized  to sign)**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | ** **                                                                                     |                                                                                                                  |   |   | **(Signature of Contracting  Officer)** |   |   |
| **NSN 7540-01-152-8070**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |                                                                                           | **30-105-02**                                                                                                         |   | **STANDARD FORM 30 (REV.10-83)** |
| **PREVIOUS EDITIONS UNUSABLE**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | ** **                                                                                     |                                                                                                                  |   | **Prescribed by GSA FAR (48 CFR) 53.243** |
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| **CONTINUATION  SHEET**                                                                                  | ** ** | **Reference No. of  Document Being Continued  PIN/SIN  **DAAE07-03-C-S023                                   **MOD/AMD  **P00048 | ** ** | **Page **2 of 74 |
|----------------------------------------------------------------------------------------------------------|------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------|-----------------------|
| **Name of Offeror or Contractor:**  STEWART &  STEVENSON TACTICAL VEHICLE SYSTEMS, LP |

 

SECTION A– SUPPLEMENTAL INFORMATION

 
| CONTRACT AMOUNT: | $***   |   |
|------------------|--------|--------|
|             |   |   |
| THIS MOD:        | $***   |   |
|             |   |   |
| CURRENT AMOUNT:  | $***   |   |

 

1.               Thepurpose of modification P00048 is to make the following changes (all textchanges are followed by a single asterisk unless in a SLIN narrative):

 

a.               Callup Program Year 3 SLINs.  The ProductManager, Medium Tactical Vehicles provided a decision to call up the ThirdProgram Year supported by a positive recommendation from an In ProcessReview.  The IPR reviewed the Contractorsproduction progress and PVT 1 performance as defined in C.2.5.3.

 

b.              Section B:  Fund all PY3 SLINs (PRON numbers, deliverydates with quantity(s) and other data inserted).  Due to a change to the original model mix ofvehicles:

 

(1)          Section B:  Add SLIN 3001ABfor the equitable adjustment for the changes in the PY3 model mix.

 

(2)          Delete SLIN3115AA.

 

(3)          Add the followingSLINs:  3101AB, 3102AB, 3105AB, 3106AB,3107AA, 3107AB, 3108AA, 3108AB, 3109AA, 3109AB, 3111AB and 3113AB.

 

(4)          Adjust the quantities for SLINs 3101AA, 3102AA, 3103AA, 3104AA, 3104AB,3105AA, 3106AA, 3111AA, 3113AA, 3114AA, 3114AB, 3116AA and 3116AB.

 

(5)          All of the SLINs referenced in paragraphs 1.b(3) aboveshall include and the prices reglect the inclusion of the following ECPs:

 

-                    ECP SSS-U7297,                                  Modification of Power Distribution

-                    ECP SSS-U7670R1                       Aluminum Cab Roof Hatch

-                    ECP SSS-U7479,                                  Sliding Pintle

-                    ECP SSS-U7767,                                  Line Audit Findings

 

(6)          The Contractor is permitted, at no additional cost to the Government, toexpedite delivery under any PY3 SLIN for all deliveries due prior to 01 Mar2006 without separate written PCO approval. Any additional Care & Storage costs resulting from anaccelerated delivery shall be the Contractor’s responsibility.  The Government will be responsible for Care &Storage costs after 180 days have lapsed from the delivery dates contained inAttachment 23 dated 07 Mar 05.

 

(7)          The correct delivery schedule is contained in Attachment 23 dated07 Mar 05.  The SLIN deliveries may notmatch those contain in the attachment and will be updated in a futuremodification.  The Attachment 23 hasprecedence over the SLIN delivery schedules until they are updated.

 

c.               Section B,SLINs 3114AA and 3114AB:  the narrativeshave been changed by adding the following

 

“NOTE:  TheGovernment is developing a new dump truck which is expected to replace theM1090A1, MTV 5 Ton Dump Truck.  Designcompletion is projected to occur during PY3. Accordingly, the delivery information below is shown asundefinitized.  A delivery schedule willbe negotiated at a later date.

 

d.              Section H,paragraph H.12.1:  Change the:

 

(1)          Third Program Year amount from $*** by $*** to$***

 

(2)          Total amount from $*** by $*** to $***

 

3.               Section J,Attachment 23, Delivery Schedule:

 

(1)          Adjust the Program Year 3 base quantities, delivery dates, add anddelete the SLINs identified in paragraphs 1.c.(1) through1.c.(3) and 1.d. above.

 

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| **CONTINUATION  SHEET**                                                                                  | ** ** | **Reference No. of  Document Being Continued  PIN/SIN  **DAAE07-03-C-S023                                   **MOD/AMD  **P00048 | ** ** | **Page **3 of 74 |
|----------------------------------------------------------------------------------------------------------|------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------|-----------------------|
| **Name of Offeror or Contractor:**  STEWART &  STEVENSON TACTICAL VEHICLE SYSTEMS, LP |

 

 

(2)          Change the date of Attachment 23 from “22 Mar 05” to “07 Mar 05”.

 

2.               The Contractor hereby remises,releases and discharges the Government from all civil liabilities, obligations,claims, appeals, and demands which are based on the incorporation of the abovereferenced changes into the contract, whether administrative or judicial, legalor equitable, or direct or indirect.

 

3.               As a result of Modification P00084, the totalcontract funding is increased by $***

 

4.               All other terms and conditions of thecontract remain unchanged.

 

*** END OF NARRATIVE A 057 ***

 

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