GM Service Manual Online
For 1990-2009 cars only

Transmission Housing Oil Seal Replacement - Rear 2WD

Tools Required

    • J 23129 Universal Seal Remover
    • J 6125-1B Slide Hammer
    • J 36503 Extension Housing Seal Installer

Removal Procedure


    Object Number: 696799  Size: SH
  1. Remove the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement .
  2. Remove the rear oil seal using J 6125-1B (1) and J 23129 (2).

Installation Procedure


    Object Number: 548114  Size: SH
  1. Using J 36503 install the NEW rear oil seal.
  2. Install the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement .
  3. Check to transmission fluid level. Add if necessary.
  4. Lower the vehicle.

Transmission Housing Oil Seal Replacement - Rear 4WD

Tools Required

    • J 36825 Output Shaft Oil Seal Remover
    • J 23907 Slide Hammer
    • J 36502-2A Output Shaft Oil Seal Protector
    • J 36502 Extension Housing Seal Installer

Removal Procedure


    Object Number: 4781  Size: SH
  1. Remove transfer case. Refer to Transfer Case Assembly Replacement for the NVG 236/246-NP8 (Two Speed Automatic) transfer case or Transfer Case Assembly Replacement for the NVG 261-NP2 (Two Speed Manual) transfer case.
  2. Using J 36825 and J 23907 remove the output shaft seal.

Installation Procedure


    Object Number: 4757  Size: SH
  1. Position the J 36502-2A over the output shaft.

  2. Object Number: 4758  Size: SH
  3. Using J 36502 install the NEW output shaft seal.

  4. Object Number: 4757  Size: SH
  5. Remove the J 36502-2A from the output shaft.

  6. Object Number: 7909  Size: SH
  7. Fill the space between the seal lips with grease GM P/N 1052497 or equivalent.
  8. Install transfer case. Refer to Transfer Case Assembly Replacement for the NVG 236/246-NP8 (Two Speed Automatic) transfer case or Transfer Case Assembly Replacement for the NVG 261-NP2 (Two Speed Manual) transfer case.
  9. Check the transmission fluid level. Add as necessary.
  10. Lower the vehicle.