GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 3289-20 Holding Fixture
    • J 23907 Slide Hammer with Bearing Adapter
    • J 45278 Seal Remover
    • J 45759 Assembly Fixture
    • J 45934 Input Seal Installer

Removal Procedure

  1. Remove the transfer case assembly. Refer to Transfer Case Assembly Replacement .

  2. Object Number: 908763  Size: SH
  3. Install the J 45759 to the transfer case, using 4 suitable bolts.

  4. Object Number: 908797  Size: SH
  5. Mount the J 3289-20  (1) to a sturdy workbench.
  6. Install the J 45759  (2), with the transfer case, into the J 3289-20  (1) and secure with the pivot pin.
  7. Notice: Refer to Transfer Case Seal Removal Notice in the Preface section.


    Object Number: 908975  Size: SH

    Important: 

       • There is no shoulder to prevent the seal from going into the transfer case.
       • Turn, and hold the J 45278  (2) under the seal for removal.

  8. Using the J 23907  (1) and J 45278  (2) remove the input shaft seal from the transfer case.
  9. Discard the seal.

Installation Procedure


    Object Number: 909417  Size: SH
  1. Using the J 45934 and a hammer, install the NEW input shaft seal into the transfer case.
  2. The J 45934 will install the seal to the proper depth.


    Object Number: 908797  Size: SH
  3. Remove the J 45759  (2) from the transfer case.
  4. Install the transfer case assembly. Refer to Transfer Case Assembly Replacement .