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                                                                 EXHIBIT 10.4(g)


               SIXTH AMENDMENT TO REVOLVING CREDIT LOAN AGREEMENT


         THIS SIXTH AMENDMENT TO REVOLVING CREDIT LOAN AGREEMENT (the
"Amendment") is entered into as of the ____ day of September, 2003, by and
between SUNTRUST BANK, a Georgia state banking corporation (the "Lender"), and
CENTRAL FREIGHT LINES, INC., a Texas corporation (the "Borrower").


                                    RECITALS:

         A. Borrower and Lender entered into that certain Revolving Credit Loan
Agreement dated April 30, 2002, as most recently amended by that certain Fifth
Amendment to Revolving Credit Loan Agreement dated as of July 5, 2003 (the "Loan
Agreement"),

         B. The Borrower and the Lender desire to amend the Loan Agreement as
set forth herein.

         NOW, THEREFORE, in consideration of the premises and mutual covenants
and obligations herein, the parties hereto agree that the Loan Agreement is
hereby amended and modified as follows:

         Section 1. The definition of "Maturity Date" set forth in Section 1.1
of the Loan Agreement is hereby amended and restated as follows:

                  "MATURITY DATE" shall mean October 31, 2004.

         Section 2. Except as provided herein, the Loan Agreement shall remain
unamended in full force and effect.

         Section 3. This modification shall be governed by and construed in
accordance with the laws of the State of Tennessee.

         IN WITNESS WHEREOF, the undersigned by and through their duly
authorized officers hereby execute this Amendment as of the day and date first
set forth above.


BORROWER:                                   LENDER:
--------                                    -------

CENTRAL FREIGHT LINES, INC.                 SUNTRUST BANK

By:      /s/ Jeff Hale                      By:      /s/ William H. Crawford
   --------------------------------            ---------------------------------

Title:   CFO                                Title:   Director, SunTrust Bank
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