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                                                                       EXHIBIT 6
 
                                      LOGO
 
                                                                    July 8, 1995
 
Board of Directors
WorldWay Corporation
400 Two Coliseum Center
2400 Yorkmont Road
Charlotte, North Carolina 28217
 
Dear Sirs:
 
     You have requested our opinion as to the fairness from a financial point of
view to the common shareholders of WorldWay Corporation (the "Company") of the
consideration to be received by such shareholders pursuant to the terms of the
Agreement and Plan of Merger dated as of July 8, 1995, among Arkansas Best
Corporation ("Arkansas Best"), the Company and ABC Acquisition Corporation, a
wholly owned subsidiary of Arkansas Best (the "Agreement").
 
     Pursuant to the Agreement, ABC Acquisition Corporation will commence a
tender offer for any and all outstanding shares of the Company's common stock at
a price of $11.00 per share. The tender offer is to be followed by a merger in
which the shares of all shareholders who did not tender would be converted into
the right to receive $11.00 per share in cash.
 
     In arriving at our opinion, we have reviewed the Agreement. We also have
reviewed financial and other information that was publicly available or
furnished to us by the Company including information provided during discussions
with management. Included in the information provided during discussions with
management were certain financial projections of the Company for the period
beginning May 21, 1995 and ending December 31, 1997 prepared by the management
of the Company. In addition, we have compared certain financial and securities
data of the Company with various other companies whose securities are traded in
public markets, reviewed the historical stock prices and trading volumes of the
common stock of the Company, reviewed prices and premiums paid in other business
combinations and conducted such other financial studies, analyses and
investigations as we deemed appropriate for purposes of this opinion. With the
exception of a single party which was contacted in July, 1994, we were not
requested to, nor did we, solicit the interest of any other party in acquiring
the Company, nor did we participate in any direct negotiations with Arkansas
Best or its representatives.
 
     In rendering our opinion, we have relied upon and assumed the accuracy,
completeness and fairness of all of the financial and other information that was
available to us from public sources, that was provided to us by the Company or
its representatives, or that was otherwise reviewed by us. We have not assumed
any responsibility for making an independent evaluation of the Company's assets
or liabilities or for making any independent verification of any of the
information reviewed by us. We have relied as to all legal matters on advice of
counsel to the Company.
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Board of Directors
WorldWay Corporation
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                                                                    July 8, 1995
 
     Our opinion is necessarily based on economic, market, financial and other
conditions as they exist on, and on the information made available to us as of,
the date of this letter. It should be understood that, although subsequent
developments may affect this opinion, we do not have any obligation to update,
revise or reaffirm this opinion. Our opinion does not constitute a
recommendation to any common shareholder as to whether to tender their shares or
as to how such shareholder should vote on the proposed transaction.
 
     Donaldson, Lufkin & Jenrette Securities Corporation ("DLJ"), as part of its
investment banking services, is regularly engaged in the valuation of businesses
and securities in connection with mergers, acquisitions, underwritings, sales
and distributions of listed and unlisted securities, private placements and
valuations for estate, corporate and other purposes. DLJ has been engaged by the
Company in a financial advisory capacity since April 27, 1994.
 
     Based upon the foregoing and such other factors as we deem relevant, we are
of the opinion that the consideration to be received by the common shareholders
of the Company pursuant to the Agreement is fair to the common shareholders of
the Company from a financial point of view.
 
                                            Very truly yours,
 
                                            DONALDSON, LUFKIN & JENRETTE
                                            SECURITIES CORPORATION
 
                                            By: /s/  L. PRICE BLACKFORD
                                              L. Price Blackford
                                              Managing Director