GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 23327 Return Spring Compressor
    • J 45398 Forward Clutch Inner Seal Puller
    • J 25031-A Puller/Inner Seal Remover

    Object Number: 20243  Size: SH
  1. Remove the snap ring (600) from the housing assembly (609).
  2. Remove the backing plate (601).
  3. Remove the seven fiber plates (602).
  4. Remove the seven steel plates (603).
  5. Remove the wave plate (604).

  6. Object Number: 20245  Size: SH

    Notice: Compress the return spring assembly (606) only enough to remove the snap ring (605), or damage may occur to the spring assembly (606).

  7. Compress the forward clutch return spring assembly. Use the J 23327 .
  8. Remove the return spring snap ring (605).
  9. Remove the J 23327 .

  10. Object Number: 728427  Size: SH
  11. Remove the forward clutch return spring assembly (606).
  12. Remove the forward clutch piston and seal assembly (607).

  13. Object Number: 20246  Size: SH

    Important: If the seal assembly is not damaged do not remove the seal assembly.

  14. Inspect the forward clutch inner seal assembly (608) for damage.
  15. If the seal is damaged, assemble J 45398-1 (3), which is part of J 45398 , onto the seal. Place the J 45398-2 (2), which is part of J 45398 , on the inner hub of the clutch housing.
  16. Important: Align puller J 25031-A (1) with the groove located on the outside of J 45398-1 to aid in removal.

  17. Use J 25031-A (1) to remove the seal.

  18. Object Number: 20321  Size: SH
  19. Inspect the housing, the plates, the bushings, the splines, the band apply surface, the roller clutch race, and the spring assembly.
  20. Inspect fluid feed holes for proper openings.
  21. Inspect the retainer and ball assembly for proper openings.
  22. Inspect the piston and seal assembly for cut seals or other damage. The piston and seal assemblies are reusable, if not damaged.
  23. Clean and dry all of the components.

Special Tools

    • J 23327 Return Spring Compressor
    • J 45398 Forward Clutch Inner Seal Puller
    • J 258031-A Puller/Inner Seal Remover

For equivalent regional tools, refer to Special Tools.


    Object Number: 20243  Size: SH
  1. Remove the snap ring (600) from the housing assembly (609).
  2. Remove the backing plate (601).
  3. Remove the seven fiber plates (602).
  4. Remove the seven steel plates (603).
  5. Remove the wave plate (604).

  6. Object Number: 20245  Size: SH

    Caution: Compress the return spring assembly (606) only enough to remove the snap ring (605), or damage may occur to the spring assembly (606).

  7. Compress the forward clutch return spring assembly. Use the J 23327 spring compressor .
  8. Remove the return spring snap ring (605).
  9. Remove the J 23327 spring compressor .

  10. Object Number: 728427  Size: SH
  11. Remove the forward clutch return spring assembly (606).
  12. Remove the forward clutch piston and seal assembly (607).

  13. Object Number: 20246  Size: SH

    Note: If the seal assembly is not damaged do not remove the seal assembly.

  14. Inspect the forward clutch inner seal assembly (608) for damage.
  15. If the seal is damaged, assemble J 45398-1 (3), which is part of J 45398 seal puller , onto the seal. Place the J 45398-2 (2), which is part of J 45398 seal puller , on the inner hub of the clutch housing.
  16. Note: Align puller J 258031-A seal remover  (1) with the groove located on the outside of J 45398-1 to aid in removal.

  17. Use J 258031-A seal remover  (1) to remove the seal.

  18. Object Number: 20321  Size: SH
  19. Inspect the housing, the plates, the bushings, the splines, the band apply surface, the roller clutch race, and the spring assembly.
  20. Inspect fluid feed holes for proper openings.
  21. Inspect the retainer and ball assembly for proper openings.
  22. Inspect the piston and seal assembly for cut seals or other damage. The piston and seal assemblies are reusable, if not damaged.
  23. Clean and dry all of the components.