GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 8092 Driver Handle
    • J 43484 Output Shaft Seal Installer

Removal Procedure


    Object Number: 749439  Size: SH
  1. Remove the transfer case shield, if equipped. Refer to Transfer Case Shield Replacement .
  2. Remove the front propeller shaft. Refer to Front Propeller Shaft Replacement .
  3. Insert a flat-tipped screw driver into the inner race.
  4. Pry the inner race back.

  5. Object Number: 749435  Size: SH
  6. Insert a small pry bar into the inner race.
  7. Important: When performing the following service procedure, the outer part of the seal will slightly move out of the transfer case with the inner part seal.

  8. Pry the inner part of the seal from the outer seal body.

  9. Object Number: 749436  Size: SH
  10. Remove the inner part of the seal.

  11. Object Number: 749437  Size: SH
  12. Insert a flat-tipped screwdriver or small pry bar into the space between the lip of the outer race of the seal and the transfer case.
  13. Pry the outer race out of the transfer case.

  14. Object Number: 749438  Size: SH
  15. Remove the outer part of the seal.

Installation Procedure


    Object Number: 678236  Size: SH
  1. Install the J 43484 (2) to the J 8092 (1).
  2. Install a NEW seal onto J 43484 .
  3. Using J 43484 (2), and J 8092 (1), install the seal.
  4. Install the front propeller shaft. Refer to Front Propeller Shaft Replacement .
  5. Check the fluid level. Add fluid, if necessary.
  6. Install the transfer case shield, if equipped. Refer to Transfer Case Shield Replacement .