GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 23327 Clutch Spring Compressor
    • J 38731-1 Fourth Clutch Piston and Housing Seal Protector
    • J 38731-2 Fourth Clutch Piston and Housing Seal Protector
    • J 38731-3 Fourth Clutch Piston and Housing Seal Spacer
    • J 38882 Fourth Clutch Spring and Retainer Assembly Adapter

For equivalent regional tools, refer to Special Tools.


    Object Number: 31099  Size: SH
  1. Install the fourth clutch piston inner seal (527) onto the fourth clutch piston (528).

  2. Object Number: 335055  Size: SH
  3. Install the fourth clutch piston outer seal (531) into the fourth clutch housing (529). The seal lip should face the bottom of the piston when the piston is installed.

  4. Object Number: 335056  Size: SH
  5. Place the J 38731-1 seal protector into the fourth clutch housing (529) through the smaller opening.
  6. Place the J 38731-2 seal protector onto the larger opening of the fourth clutch piston (528).

  7. Object Number: 31102  Size: SH
  8. Place the J 38731-2 seal protector and the fourth clutch piston (528) onto the J 38731-3 seal spacer .

  9. Object Number: 335058  Size: SH
  10. Install the fourth clutch piston (528) into the fourth clutch housing (529) by gently pushing down on the fourth clutch housing (529), until the fourth clutch piston (528) is through the fourth clutch housing (529), exposing the retainer ring groove.
  11. Remove all tools.

  12. Object Number: 335052  Size: SH
  13. Place the fourth clutch spring assembly (532) and the fourth clutch spring retainer ring (533) onto the fourth clutch piston (528).
  14. Using the J 38882 adapter , the J 23327 spring compressor and the J 38731-3 seal spacer , compress the fourth clutch spring (532).
  15. Install the fourth clutch spring retainer ring (533).
  16. Remove the tools.

  17. Object Number: 335059  Size: SH

    Note: Alternate the clutch plates, starting with the steel clutch plate (526) (4 steel and 4 composite). Locate the steel plate index notch opposite the fourth clutch bolt hole.

  18. Install the fourth clutch plates (525, 526) into the fourth clutch housing (529).
  19. Install the fourth clutch backing plate (524). Align the notched tab in the same direction as the steel plate index notches.
  20. Install the fourth clutch backing plate retainer ring (523).