GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 23327 Spring Compressor
    • J 28585 Snap Ring Remover
    • J 45124 Removable Bridge

Note these items during reassembly:

    • Clean all parts thoroughly and dry them with compressed air.

       Caution: When you use compressed air in order to clear fluid passages and to dry parts, always aim the air pressure away from face and eyes. Always wear adequate eye protection in order to avoid injury from dirt and debris that may adhere to parts.

    • Use compressed air to clear all passages.
    • Apply automatic transmission fluid to all O-ring seals before assembly.
    • Soak all clutch fiber plates thoroughly in automatic transmission fluid for a minimum of 30 minutes.

    Object Number: 1345574  Size: SH
  1. Install a 41.8 x 2.2 mm 3rd clutch piston inner O-ring seal (820).
  2. Install a 116.7 x 2.2 mm 3rd clutch piston outer O-ring seal (819).

  3. Object Number: 1345577  Size: SH
  4. Install the 3rd clutch piston assembly (818) into the 3rd clutch housing (821).
  5. •  Apply hand pressure and rotate the 3rd clutch piston assembly.
    • Ensure proper seating.
    • Do not pinch the O-ring seal by installing the piston with excessive force.

    Object Number: 1345173  Size: SH
  6. Install the 3rd clutch piston return spring (816).
  7. Install the 3rd clutch piston spring cap (815).
  8. Place the 3rd clutch piston 42 mm retaining ring (814) on the retainer cap.

  9. Object Number: 1345556  Size: SH

    Important: Position the legs of the J 45124 on the spring retainer cap only where the spring is in contact with the cap.

  10. Using the bridge and legs of the J 45124  (2) with the forcing screw of the J 23327  (1) and J 21420-2 (3) plate of the J 23327 , compress the clutch piston return spring until the groove for the clutch spring retainer cap retaining ring is accessible.
  11. • Adjust the legs of the J 45124 to have full contact with the clutch piston return spring retainer cap.
    • Do not place the legs on the spring retainer cap that is not supported by the spring.
    • Ensure the legs remain in position where the spring retainer cap is in contact with the spring.

    Object Number: 1345563  Size: SH
  12. Install the 3rd clutch piston 42 mm retaining ring (814).
  13. Remove the tools.

  14. Object Number: 1345578  Size: SH
  15. Install into the 3rd clutch housing (821) the 3rd clutch piston, spring plate (817) with the cone facing up as shown.

  16. Object Number: 1711948  Size: SH
  17. Install into the 3rd clutch housing (821) the following components:
  18. • 3rd clutch steel flat plate (813)
    • 3rd clutch fiber plate (812)
  19. Alternately install the above components. Install the 3rd clutch steel wave plates (830) in the top two positions.

  20. Object Number: 1345582  Size: SH
  21. Install the 3rd clutch selective backing plate (811) with the flat side facing the last 3rd clutch fiber plate (812) as shown in the insert.

  22. Object Number: 1345586  Size: SH
  23. Using J 28585 , install the 3rd clutch backing plate 137 mm retaining ring (810) into the groove of the 3rd clutch housing (831).
  24. Measure the clutch backing plate clearance. Refer to Clutch Backing Plate Clearance Measurement .