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                                                               EXHIBIT 10.10

                                                               MASON DIXON LINES

                     SECOND AMENDMENT TO SECURITY AGREEMENT

      THIS AMENDMENT is made and entered into on this the, 29th day of June,
2004, by and between THE MASON AND DIXON LINES, INCORPORATED, a Delaware
corporation, whose address is 11355 Stephens Road, Warren, Michigan 48089, party
of the first part, hereinafter called "Grantor," and FIRST TENNESSEE BANK
NATIONAL ASSOCIATION, a national banking association, whose address is 165
Madison Avenue, Memphis, Tennessee 38103, Attention: Commercial Finance
Division, party of the second part, hereinafter called the "Bank."

                                Recitals of Fact

      Grantor as Debtor, has heretofore made, executed and delivered to the
Bank, as Secured Party, that certain Security Agreement ("Security Agreement")
bearing date of the 31st day of December, 2001, as amended by First Amendment to
Security Agreement dated May 11, 2004, for the purpose of securing the payment
of certain Obligations, as mentioned and defined in the Security Agreement.

      Grantor, together with Universal Truckload Services, Inc. ("Universal
Truckload"), Universal Am-Can, Ltd. ("Universal Am-Can"), Mason Dixon
Intermodal, Inc. ("Mason Intermodal"), Economy Transportation, Inc. ("Economy")
and Louisiana Transportation, Inc. ("Louisiana"), has this day made, executed
and delivered to the Bank its Amended and Restated Revolving Credit Note in the
principal sum of Forty Million Dollars ($40,000,000.00); and as a result
thereof, the parties desire to modify and amend the Security Agreement as
hereinafter provided.

      NOW, THEREFORE, for and in consideration of the premises, as set forth in
the Recitals of Fact, and other good and valuable considerations, the receipt
and sufficiency of which are hereby acknowledged, it is agreed by the parties as
follows:

                                   Agreements

      1. Paragraphs 3(a), 3(b) and 3(c) of the Security Agreement are hereby
modified and amended to read as follows:

            (a) The full and prompt payment, when due, of the indebtedness (and
      interest thereon) evidenced and to be evidenced by that certain promissory
      note, bearing date of the 31st day of December, 2001, in the principal
      sum of Twenty Million Dollars ($20,000,000.00), executed by Universal
      Truckload, Grantor and Universal Am-Can and payable to the order of Bank,
      as amended by that Amended and Restated Promissory Note dated May 11,
      2004, in the principal sum of Twenty Million Dollars ($20,000,000.00),
      executed by Universal Truckload, Mason Intermodal, Universal Am-Can and
      the Grantor as amended and restated by that Second Amended and Restated
      Promissory Note dated June 29, 2004 in the principal sum of Forty Million
      Dollars ($40,000,000.00), executed by Universal Truckload, Mason
      Intermodal, Grantor, Universal Am-Can, Economy, and Louisiana and payable
      to the order of the Bank, and any and all renewals, modifications, and
      extensions of said note, in whole or in part;

            (b) The due performance and observance by the Grantor, Universal
      Truckload, Mason Intermodal, Economy, Louisiana and/or Universal Am-Can,
      as applicable, of all of its

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      covenants, agreements, representations, liabilities, obligations, and
      undertakings as set forth herein, or in the Loan Agreement (as the same
      may be modified, renewed or extended from time to time), or in the
      Universal Security Agreement, the Mason Intermodal Security Agreement, the
      Economy Security Agreement, the Louisiana Security Agreement or in any
      other instrument or document which now or at any time hereafter evidences
      or secures, in whole or in part, all or any part of the Obligations hereby
      secured; and

            (c) The prompt payment and performance of any and all other present
      and future obligations of Grantor, Universal Am-Can, Mason Intermodal,
      Economy, Louisiana or Universal Truckload to Bank with respect to any
      letters of credit issued at any time by Bank for the benefit of Grantor,
      Universal Am-Can, Mason Intermodal, Louisiana Economy, Universal or
      Universal Truckload under the Loan Agreement.

      2. All references in the Security Agreement to the Loan Agreement shall be
deemed to be references to the Loan Agreement as amended by First Amendment to
Loan Agreement dated May 11, 2004, executed by Grantor, Universal Truckload,
Universal Am-Can, Mason Intermodal and the Bank, as amended by the Second
Amendment to Loan Agreement dated June 29, 2004, executed by Grantor, Universal
Truckload, Universal Am-Can, Mason Intermodal, Economy, Louisiana and the Bank.

      3. All Capitalized terms not defined in the Security Agreement as amended
shall have the definitions set forth in the Loan Agreement.

      4. All terms and provisions of the Security Agreement, which are
inconsistent with the terms and provisions of this Amendment are hereby modified
and amended to conform herewith; and, as modified and amended hereby, the
Security Agreement is hereby ratified, approved and confirmed by the parties
hereto.

                                     - 2 -
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      IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed in Memphis, Tennessee, by their respective officers, duly authorized so
to do, on this the day and year first above written.

                                       THE MASON AND DIXON LINES,
                                       INCORPORATED

                                       By: /s/ Leo Blumenauer
                                           ------------------------------------
                                       Title: President

                                                                         GRANTOR

                                       FIRST TENNESSEE BANK
                                       NATIONAL ASSOCIATION

                                       By: /s/ Gavin Turner
                                           ------------------------------------
                                       Title: Loan Officer

                                                                            BANK

                                     - 3 -<PAGE>

                                                                EXHIBIT 10.11

                                                                MASON INTERMODAL

                      FIRST AMENDMENT TO SECURITY AGREEMENT

      THIS AMENDMENT is made and entered into on this the 29th day of June,
2004, by and between MASON DIXON INTERMODAL, INC., a Michigan corporation, whose
address is 11355 Stephens Road, Warren, Michigan 48089, party of the first part,
hereinafter called "Grantor," and FIRST TENNESSEE BANK NATIONAL ASSOCIATION, a
national banking association, whose address is 165 Madison Avenue, Memphis,
Tennessee 38103, Attention: Commercial Finance Division, party of the second
part, hereinafter called the "Bank."

                                Recitals of Fact

      Grantor as Debtor, has heretofore made, executed and delivered to the
Bank, as Secured Party, that certain Security Agreement ("Security Agreement")
bearing date of the 11th day of May, 2004, for the purpose of securing the
payment of certain Obligations, as mentioned and defined in the Security
Agreement.

      Grantor, together with Universal Truckload Services, Inc. ("Universal
Truckload"), Universal Am-Can, Ltd. ("Universal Am-Can"), The Mason and Dixon
Lines, Incorporated ("Mason Dixon"), Economy Transportation, Inc. ("Economy")
and Louisiana Transportation, Inc. ("Louisiana"), has this day made, executed
and delivered to the Bank its Amended and Restated Revolving Credit Note in the
principal sum of Forty Million Dollars ($40,000,000.00); and as a result
thereof, the parties desire to modify and amend the Security Agreement as
hereinafter provided.

      NOW, THEREFORE, for and in consideration of the premises, as set forth in
the Recitals of Fact, and other good and valuable considerations, the receipt
and sufficiency of which are hereby acknowledged, it is agreed by the parties as
follows:

                                   Agreements

      1. Paragraphs 3(a), 3(b) and 3(c) of the Security Agreement are hereby
modified and amended to read as follows:

            (a) The full and prompt payment, when due, of the indebtedness (and
      interest thereon) evidenced and to be evidenced by that certain promissory
      note, bearing date of the 31st day of December, 2001, in the principal sum
      of Twenty Million Dollars ($20,000,000.00), executed by Universal
      Truckload, Mason Dixon and Universal Am-Can and payable to the order of
      Bank, as amended by that Amended and Restated Promissory Note dated May
      11, 2004, in the principal sum of Twenty Million Dollars ($20,000,000.00),
      executed by Universal Truckload, Mason Dixon, Universal Am-Can and the
      Grantor as amended and restated by that Second Amended and Restated
      Promissory Note dated June 29, 2004 in the principal sum of Forty Million
      Dollars ($40,000,000.00), executed by Universal Truckload, Mason Dixon,
      Grantor, Universal Am-Can. Economy, and Louisiana and payable to the order
      of the Bank, and any and all renewals, modifications, and extensions of
      said note, in whole or in part;

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            (b) The due performance and observance by the Grantor, Universal
      Truckload, Mason Dixon, Economy, Louisiana and/or Universal Am-Can, as
      applicable, of all of its covenants, agreements, representations,
      liabilities, obligations, and undertakings as set forth herein, or in the
      Loan Agreement (as the same may be modified, renewed or extended from time
      to time), or in the Universal Security Agreement, the Mason Intermodal
      Security Agreement, the Economy Security Agreement, the Louisiana Security
      Agreement or in any other instrument or document which now or at any time
      hereafter evidences or secures, in whole or in part, all or any part of
      the Obligations hereby secured; and

            (c) The prompt payment and performance of any and all other present
      and future obligations of Grantor, Universal Am-Can, Mason Dixon, Economy,
      Louisiana or Universal Truckload to Bank with respect to any letters of
      credit issued at any time by Bank for the benefit of Grantor, Universal
      Am-Can, Mason Dixon, Louisiana Economy, Universal or Universal Truckload
      under the Loan Agreement.

      2. All references in the Security Agreement to the Loan Agreement shall be
deemed to be references to the Loan Agreement as amended by First Amendment to
Loan Agreement dated May 11, 2004, executed by Grantor, Universal Truckload,
Universal Am-Can, Mason Dixon and the Bank, as amended by the Second Amendment
to Loan Agreement dated June 29, 2004, executed by Grantor, Universal
Truckload, Universal Am-Can, Mason Dixon, Economy, Louisiana and the Bank.

      3. All Capitalized terms not defined in the Security Agreement as amended
shall have the definitions set forth in the Loan Agreement.

      4. All terms and provisions of the Security Agreement, which are
inconsistent with the terms and provisions of this Amendment are hereby modified
and amended to conform herewith; and, as modified and amended hereby, the
Security Agreement is hereby ratified, approved and confirmed by the parties
hereto.

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      IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed in Memphis, Tennessee, by their respective officers, duly authorized so
to do, on this the day and year first above written.

                                       MASON DIXON INTERMODAL, INC.

                                       By: /s/ Joe Rubino
                                           ------------------------------------
                                       Title: President

                                                                         GRANTOR

                                       FIRST TENNESSEE BANK
                                       NATIONAL ASSOCIATION

                                       By: /s/ Gavin Turner
                                           ------------------------------------
                                       Title: Loan Officer

                                                                            BANK

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