     Exhibit 10.4(b) Revolving Credit Note.

                              REVOLVING CREDIT NOTE
$30,000,000                                                Nashville, Tennessee
                                                           July 28, 2004

     FOR VALUE RECEIVED,  the undersigned,  Central Freight Lines, Inc., a Texas
corporation  (the  "Borrower"),  hereby  promises to pay to  SunTrust  Bank (the
"Lender") or its registered  assigns at its principal office or any other office
that the Lender  designates,  on the Commitment  Termination Date, as defined in
the First Amended and Restated  Revolving Credit Loan Agreement dated as of July
28, 2004, (as the same may be amended,  supplemented or otherwise modified from
time to time, the "Credit Agreement"),  between the Borrower and the Lender, the
lesser of the principal sum of $30,000,000  and the aggregate  unpaid  principal
amount of all Revolving Loans made by the Lender to the Borrower pursuant to the
Credit Agreement, in lawful money of the United States of America in immediately
available  funds,  and to pay  interest  from the date  hereof on the  principal
amount thereof from time to time outstanding,  in like funds, at said office, at
the rate or rates per annum and  payable on such dates as provided in the Credit
Agreement. In addition, should legal action or an attorney-at-law be utilized to
collect any amount due hereunder, the Borrower further promises to pay all costs
of collection, including the reasonable attorneys' fees of the Lender.

     The Borrower promises to pay interest,  on demand, on any overdue principal
and, to the extent  permitted by law, overdue interest from their due dates at a
rate or rates provided in the Credit Agreement.

     All borrowings evidenced by this Revolving Credit Note and all payments and
prepayments  of the  principal  hereof and the date thereof shall be endorsed by
the holder hereof on the schedule attached hereto and made a part hereof or on a
continuation  thereof which shall be attached hereto and made a part hereof,  or
otherwise  recorded by such holder in its internal records;  provided,  that the
failure  of the  holder  hereof  to make  such a  notation  or any error in such
notation  shall not affect the  obligations of the Borrower to make the payments
of principal and interest in accordance with the terms of this Revolving  Credit
Note and the Credit Agreement.

     This Revolving Credit Note is issued in connection with, and is entitled to
the  benefits  of, the Credit  Agreement  which,  among other  things,  contains
provisions  for the  acceleration  of the maturity  hereof upon the happening of
certain  events,  for  prepayment of the principal  hereof prior to the maturity
hereof  and for the  amendment  or waiver of  certain  provisions  of the Credit
Agreement,  all upon the terms and conditions therein specified.  THIS REVOLVING
CREDIT NOTE SHALL BE  CONSTRUED IN  ACCORDANCE  WITH AND GOVERNED BY THE LAWS OF
THE STATE OF TENNESSEE AND ANY APPLICABLE LAWS OF THE UNITED STATES OF AMERICA.



                                CENTRAL FREIGHT LINES, INC., a
                                Texas corporation



                                By:_________________________________


                                Title:______________________________



