GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 6125-1B Slide Hammer
    • J 44732 Output Shaft Oil Seal Installer
    •  J 23129 Universal Seal Remover
    • J 8614-01 Pinion Flange Holder

Removal Procedure


    Object Number: 727452  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement in Propeller Shaft.
  3. Using the J 8614-01 to hold the transmission yoke, remove and discard the yoke nut.

  4. Object Number: 661231  Size: SH
  5. Remove the yoke.

  6. Object Number: 696799  Size: SH
  7. Using J 6125-1B (1) and J 23129 (2), remove the rear oil seal.

Installation Procedure

Important: The J 44732 will set the oil seal to the proper depth. Failure to use the J 44732 will cause improper installation of the oil seal.


    Object Number: 696798  Size: SH
  1. Using J 44732 install the rear oil seal.

  2. Object Number: 661231  Size: SH
  3. Install the yoke.
  4. Use the J 8614-01 in order to hold the yoke.
  5. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  6. Install a NEW yoke nut.
  7. Tighten
    Tighten the nut to 330 N·m (244 lb ft).

  8. Install the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement in Propeller Shaft.
  9. Check the transmission fluid level. Add if necessary.
  10. Lower the vehicle.