____________________________________
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                      ____________________________________

                                   __________
                                    FORM 8-K
                                   __________


                                 CURRENT REPORT
                         Pursuant to Section 13 or 15(d)
                     of the Securities Exchange Act of 1934



                          Date of Report: June 29, 2001
                        (Date of earliest event reported)




                         SWIFT TRANSPORTATION CO., INC.
             (Exact name of registrant as specified in its charter)







      Nevada                           0-18605                      86-0666860
(State or other jurisdiction    (Commission File Number)        (I.R.S Employer
of incorporation)                                            Identification No.)



                             2200 South 75th Avenue
                             Phoenix, Arizona 85043
               (Address of principal executive offices) (Zip Code)


                                 (602) 269-9700
              (Registrant's telephone number, including area code)
              ____________________________________________________








<PAGE>


ITEM 2.  ACQUISITON OR DISPOSITION OF ASSETS

     At 5:00 p.m. Pacific Time on June 29, 2001,  pursuant to a Merger Agreement
dated  December  11,  2000,  among  Swift  Transportation  Co.,  Inc.,  a Nevada
corporation,  Sun  Merger,  Inc.,  a  Tennessee  corporation  and  wholly  owned
subsidiary  of Swift,  and M.S.  Carriers,  Inc., a Tennessee  corporation,  Sun
Merger  merged  with and into M.S.  Carriers.  As a result of the  merger,  M.S.
Carriers  became a wholly owned  subsidiary  of Swift.  The merger  followed the
approval by both M.S. Carriers and Swift stockholders and the termination of the
waiting  periods  mandated by the  Hart-Scott-Rodino  Antitrust  Act of 1976, as
amended.

     Prior to the merger,  M.S. Carriers was the nation's sixth largest publicly
traded truckload carrier, measured by revenue. M.S. Carriers had operating lanes
concentrated  between  the  central  states  and  points  in the  Northeast  and
Southeast,  and between points on the Eastern seaboard.  Swift presently intends
that M.S. Carriers will continue its business in substantially the same manner.

     Each share of common  stock,  par value $.01 per  share,  of M.S.  Carriers
issued and  outstanding  immediately  prior to the merger was converted into 1.7
shares of common stock,  par value $.001 per share, of Swift.  Cash will be paid
in lieu of fractional  shares.  The exchange ratio was determined  through arm's
length negotiation between representatives of Swift and M.S. Carriers. There was
no  material  relationships  between  Swift  and  M.S.  Carriers  or  any of its
affiliates,  directors or officers,  or any  associates  of any such director or
officer.

     Mellon  Investor  Services  LLC has been  retained by Swift to serve as the
Exchange Agent. As soon as reasonably practicable, Swift will cause the Exchange
Agent to mail or deliver a transmittal letter to each person who was a holder of
record of M.S.  Carriers  common stock at the effective time of the merger.  The
transmittal letter will contain  instructions for use in effecting the surrender
of certificates  formerly  representing  shares of M.S. Carriers common stock in
exchange for the certificates representing shares of Swift common stock and cash
in lieu of fractional shares that such holder has the right to receive.

     A copy of the press release issued by Swift on June 29, 2001,  with respect
to the effectiveness of the merger is attached as Exhibit 99 and is incorporated
by this reference.

     The  foregoing  description  of the Merger  Agreement  and merger  does not
purport to be complete  and is  qualified  in its  entirety by  reference to the
Registration  Statement on Form S-4, as amended,  of Swift (File No. 333-59250),
and the Merger Agreement, filed as an exhibit to the registration statement, and
such documents are incorporated by this reference.

ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

        (a) Financial statements of businesses acquired:

         Previously reported

        (b) Pro forma financial information:

         Previously reported

        (c) Exhibits:

EXHIBIT NO.   DESCRIPTION

2        Merger Agreement dated December 11, 2000, among Swift Transportation
         Co., Inc., a Nevada corporation, Sun Merger, Inc., a Tennessee
         corporation and wholly owned subsidiary of Swift, and M.S. Carriers,
         Inc., a Tennessee corporation, filed as an Exhibit to the Registration
         Statement on Form S-4, as amended, of Swift (File No. 333-59250), and
         incorporated by this reference

99       Press release issued by Swift Transportation Co., Inc., dated June 29,
         2001


                                        2
<PAGE>
                                   SIGNATURES

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


                                                  SWIFT TRANSPORTATION CO., INC.


                                                  /s/ Jerry C. Moyes
                                                  ----------------------------
                                                  Jerry C. Moyes
                                                  Chairman, President, and
                                                  Chief Executive Officer
                                                  Date:  July 6, 2001






































                                        3

<PAGE>

EXHIBIT INDEX

The following exhibits are filed herein:

EXHIBIT NO.          DESCRIPTION

2        Merger Agreement dated December 11, 2000, among Swift Transportation
         Co., Inc., a Nevada corporation, Sun Merger, Inc., a Tennessee
         corporation and wholly owned subsidiary of Swift, and M.S. Carriers,
         Inc., a Tennessee corporation, filed as an Exhibit to the Registration
         Statement on Form S-4, as amended, of Swift (File No. 333-59250), and
         incorporated by this reference

99       Press release issued by Swift Transportation Co., Inc., dated June 29,
         2001








































                                        4
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____________________________________
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                      ____________________________________

                                   __________
                                    FORM 8-K
                                   __________

                                 CURRENT REPORT
                         Pursuant to Section 13 or 15(d)
                     of the Securities Exchange Act of 1934

                          Date of Report: June 29, 2001
                        (Date of earliest event reported)

                         SWIFT TRANSPORTATION CO., INC.
             (Exact name of registrant as specified in its charter)

      Nevada                           0-18605                      86-0666860
(State or other jurisdiction    (Commission File Number)        (I.R.S Employer
of incorporation)                                            Identification No.)

                             2200 South 75th Avenue
                             Phoenix, Arizona 85043
               (Address of principal executive offices) (Zip Code)

                                 (602) 269-9700
              (Registrant's telephone number, including area code)
              ____________________________________________________
ITEM 2.  ACQUISITON OR DISPOSITION OF ASSETS

     At 5:00 p.m. Pacific Time on June 29, 2001,  pursuant to a Merger Agreement
dated  December  11,  2000,  among  Swift  Transportation  Co.,  Inc.,  a Nevada
corporation,  Sun  Merger,  Inc.,  a  Tennessee  corporation  and  wholly  owned
subsidiary  of Swift,  and M.S.  Carriers,  Inc., a Tennessee  corporation,  Sun
Merger  merged  with and into M.S.  Carriers.  As a result of the  merger,  M.S.
Carriers  became a wholly owned  subsidiary  of Swift.  The merger  followed the
approval by both M.S. Carriers and Swift stockholders and the termination of the
waiting  periods  mandated by the  Hart-Scott-Rodino  Antitrust  Act of 1976, as
amended.

     Prior to the merger,  M.S. Carriers was the nation's sixth largest publicly
traded truckload carrier, measured by revenue. M.S. Carriers had operating lanes
concentrated  between  the  central  states  and  points  in the  Northeast  and
Southeast,  and between points on the Eastern seaboard.  Swift presently intends
that M.S. Carriers will continue its business in substantially the same manner.

     Each share of common  stock,  par value $.01 per  share,  of M.S.  Carriers
issued and  outstanding  immediately  prior to the merger was converted into 1.7
shares of common stock,  par value $.001 per share, of Swift.  Cash will be paid
in lieu of fractional  shares.  The exchange ratio was determined  through arm's
length negotiation between representatives of Swift and M.S. Carriers. There was
no  material  relationships  between  Swift  and  M.S.  Carriers  or  any of its
affiliates,  directors or officers,  or any  associates  of any such director or
officer.

     Mellon  Investor  Services  LLC has been  retained by Swift to serve as the
Exchange Agent. As soon as reasonably practicable, Swift will cause the Exchange
Agent to mail or deliver a transmittal letter to each person who was a holder of
record of M.S.  Carriers  common stock at the effective time of the merger.  The
transmittal letter will contain  instructions for use in effecting the surrender
of certificates  formerly  representing  shares of M.S. Carriers common stock in
exchange for the certificates representing shares of Swift common stock and cash
in lieu of fractional shares that such holder has the right to receive.

     A copy of the press release issued by Swift on June 29, 2001,  with respect
to the effectiveness of the merger is attached as Exhibit 99 and is incorporated
by this reference.

     The  foregoing  description  of the Merger  Agreement  and merger  does not
purport to be complete  and is  qualified  in its  entirety by  reference to the
Registration  Statement on Form S-4, as amended,  of Swift (File No. 333-59250),
and the Merger Agreement, filed as an exhibit to the registration statement, and
such documents are incorporated by this reference.

ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

        (a) Financial statements of businesses acquired:

         Previously reported

        (b) Pro forma financial information:

         Previously reported

        (c) Exhibits:

EXHIBIT NO.   DESCRIPTION

2        Merger Agreement dated December 11, 2000, among Swift Transportation
         Co., Inc., a Nevada corporation, Sun Merger, Inc., a Tennessee
         corporation and wholly owned subsidiary of Swift, and M.S. Carriers,
         Inc., a Tennessee corporation, filed as an Exhibit to the Registration
         Statement on Form S-4, as amended, of Swift (File No. 333-59250), and
         incorporated by this reference

99       Press release issued by Swift Transportation Co., Inc., dated June 29,
         2001

                                        2
SIGNATURES

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

                                                  SWIFT TRANSPORTATION CO., INC.

                                                  /s/ Jerry C. Moyes
                                                  ----------------------------
                                                  Jerry C. Moyes
                                                  Chairman, President, and
                                                  Chief Executive Officer
                                                  Date:  July 6, 2001

                                        3
EXHIBIT INDEX

The following exhibits are filed herein:

EXHIBIT NO.          DESCRIPTION

2        Merger Agreement dated December 11, 2000, among Swift Transportation
         Co., Inc., a Nevada corporation, Sun Merger, Inc., a Tennessee
         corporation and wholly owned subsidiary of Swift, and M.S. Carriers,
         Inc., a Tennessee corporation, filed as an Exhibit to the Registration
         Statement on Form S-4, as amended, of Swift (File No. 333-59250), and
         incorporated by this reference

99       Press release issued by Swift Transportation Co., Inc., dated June 29,
         2001

                                        4