GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 23327 Spring Compressor
    • J 45124 Adjustable Bridge

Note these items during assembly:

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

    Object Number: 1353660  Size: SH
  1. Install new inner (618) or (634) and outer O-ring seals (617) or (633) on the clutch piston (616) or (632).

  2. Object Number: 1344615  Size: SH
  3. Install the clutch piston assembly (616) or (632) into the clutch housing (635).
  4. • Apply even hand pressure and rotate the clutch piston assembly.
    • Ensure proper seating.
    • Do not pinch the O-ring seal by installing the piston with excessive force.

    Object Number: 1344616  Size: SH
  5. Install the clutch return spring (614) or (630).
  6. Install the clutch return spring retainer cap (613) or (629).
  7. Install the clutch piston return spring retaining ring (612) or (628) on the clutch piston return spring retainer cap (613) or (629).

  8. Object Number: 1353661  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.

  9. Using the bridge and legs of the J 45124  (3) with the forcing screw of J 23327  (2) and J 21420-2 (1) plate of J 23327 , compress the clutch piston return spring (614) or (630) until the groove for the clutch spring retainer cap retaining ring (612) or (628) is accessible.
  10. • Adjust the legs of the J 45124 to have full contact with the clutch piston return spring retainer cap (613) or (629).
    • Ensure the legs remain in position where the spring retainer cap is in contact with the spring.

    Object Number: 1344618  Size: SH
  11. Install the clutch piston return spring retaining cap retaining ring (612) or (628).
  12. Remove the tools.

  13. Object Number: 1542300  Size: SH
  14. Install the spring plate (615) or (631) into the groove of the clutch piston assembly (616) or (632) with the cone side down.

  15. Object Number: 1711928  Size: SH

    Important: There are 2 possible configurations for the 4th and 5th/reverse clutch assembly. Use the 2nd design when replacing the 4th and 5th/reverse clutch assembly.

    4th Clutch

       • 1st design: four 4th clutch steel flat plates (611)
       • 2nd design: two 4th clutch steel wave plates (650) and two 4th clutch steel flat plates (611)

    5th/Reverse Clutch

       • 1st design: four 5th/reverse clutch steel flat plates (627)
       • 2nd design: two 5th clutch steel wave plates (651) and two 5th clutch steel flat plates (627)

  16. Install a clutch steel flat plate (611) or (627).
  17. Install a clutch fiber plate (610, 626).
  18. Alternately install the steel plates and the fiber plates. Install the clutch steel wave plates (650) or (651) in the top 2 positions, if the clutch plates are being replaced.
  19. Install the clutch selective backing plate (609) or (625).
  20. Install the backing plate retaining ring (608) or (624).
  21. Measure the clutch backing plate clearance. Refer to Clutch Backing Plate Clearance Measurement .