GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 41505 Output Shaft Seal Installer
    • J 6125-1B Slide Hammer
    • J 23129 Universal Seal Remover
    • J 36850 Transjel® Lubricant

Removal Procedure


    Object Number: 749709  Size: SH
  1. Place a drain pan under the vehicle.
  2. Remove the propeller shaft. Refer to Rear Propeller Shaft Replacement .
  3. Using J 6125-1B (1) and J 23129 (2), remove the output shaft seal (3) from the extension housing (4).
  4. Inspect the case extension housing for damage. Replace the extension housing if necessary. Refer to Case Extension Assembly Replacement .

Installation Procedure


    Object Number: 744178  Size: SH
  1. Lubricate the inside diameter of the NEW seal with J 36850 .
  2. Using J 41505 (1) and a soft faced mallet, install the seal (2).
  3. Install the seal (2) to the extension housing (3).
  4. Install the propeller shaft. Refer to Rear Propeller Shaft Replacement .
  5. Remove the drain pan and lower the vehicle.
  6. Fill the transmission to the proper level with DEXRON® VI transmission fluid. Refer to Transmission Fluid Check .