GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 21363 Intermediate Clutch Inner Seal Protector
    • J 23327 Clutch Spring Compressor
    • J 36850 Assembly Lubricant
    • J 38734 Intermediate Spring Compressor Adapter

For equivalent regional tools, refer to Special Tools.


    Object Number: 54646  Size: SH
  1. Install the oil cooler pipe fitting seal (690) into the center support assembly (640).

  2. Object Number: 28706  Size: SH
  3. Lubricate the new inner (637) and outer (638) intermediate clutch piston seals, and the seal pockets in the intermediate clutch piston (636) with DEXRON®VI transmission fluid.
  4. Install the inner (637) and outer (638) intermediate clutch piston seals onto the intermediate clutch piston (636) with the seal lips facing away from the spring pockets.

  5. Object Number: 54571  Size: SH
  6. Using the J 21363 inner seal protector , install the intermediate clutch piston (636) onto the center support assembly (640). Use a fine feeler gauge blade to assist with installing the piston outer seal.
  7. Remove the J 21363 inner seal protector .

  8. Object Number: 28709  Size: SH
  9. Install the intermediate clutch spring assembly (635). Align the springs with the pockets in the intermediate clutch piston.
  10. Using the J 38734 spring compressor adapter and the J 23327 spring compressor , install the intermediate clutch spring retainer ring (634).
  11. Remove the J 38734 spring compressor adapter and the J 23327 spring compressor .

  12. Object Number: 181742  Size: SH

    Caution: Do not overexpand the oil seal rings. Damage to the rings may result.

  13. Install the new direct clutch housing oil seal rings (639) onto the center support assembly (640).
  14. Use J 36850 lubricant or equivalent in order to keep the oil seal rings in place.