WITNESSETH:

                                                     EXHIBIT NO. XX-00.x.0.xx.xx

                        DIMENSIONAL INVESTMENT GROUP INC.

                   AAM/DFA TWO-YEAR CORPORATE FIXED INCOME PORTFOLIO

                         CLIENT SERVICE AGENT AGREEMENT
                             AMENDMENT NUMBER THREE

     THIS AMENDMENT is made this 19th day of March, 2002, by and between
DIMENSIONAL INVESTMENT GROUP INC., a Maryland corporation (the "Fund"), on
behalf of the AAM/DFA Two-Year Corporate Fixed Income Portfolio (the
"Portfolio"), a separate series of the Fund, and ASSANTE ASSET MANAGEMENT INC.,
a California corporation ("AAM"), as the successor to Xxxxxxxxx, Werba, Bowen,
Inc., a California corporation, d/b/a Xxxxxxxxx Xxxxx Xxxxx Advisory Services.

                                   WITNESSETH:

     WHEREAS, the Fund and the Portfolio have previously entered into the Client
Service Agent Agreement, dated March 13, 1996, as amended ("Client Service
Agreement"), pursuant to which AAM has agreed to serve as the client service
agent to the Portfolio and to perform various services for the Portfolio, as
described in the Client Service Agreement; and

     WHEREAS, management has informed the Fund that the Portfolio desires to
change its name;

     NOW, THEREFORE, in consideration of the terms and conditions hereinafter
set forth, it is hereby agreed as follows:

     1. The name of the Portfolio shall be changed from "AAM/DFA Two-Year
Corporate Fixed Income Portfolio" to "AAM/DFA Two-Year Fixed Income Portfolio,"
and any reference to the prior name of the Portfolio shall be replaced with the
new name of the Portfolio.

     2. No other provisions of the Client Service Agreement are in any way
modified by this Amendment, and all other provisions of the Client Service
Agreement remain in full force and effect.

     3. This Amendment may be executed in two or more counterparts, each of
which shall be deemed an original, but all of which together shall constitute
one and the same instrument.




     4. The effective date of this Amendment shall be March 31, 2002.

     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed on this 19 day of March, 2002.

DIMENSIONAL INVESTMENT                      ASSANTE ASSET MANAGEMENT
GROUP INC.                                  INC.

By:  /s/ Xxxxxxxxx X. Xxxxxx                By: /s/ Xxxxxxxxx X. Xxxxx
     ------------------------                   -------------------------
     Xxxxxxxxx X. Xxxxxx                    Name: Xxxxxxxxx X. Xxxxx
     Vice President                               -----------------------
     and Secretary                          Title: EVP, GM
                                                   ----------------------