Forward Clutch Assembly Disassemble

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 .

Fig 1: Identifying Forward Clutch Plates
Courtesy of GENERAL MOTORS CORP.
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).
Fig 2: View Of Forward Clutch Return Spring Snap Ring
Courtesy of GENERAL MOTORS CORP.
CAUTION: Compress the return spring assembly (606) only enough to remove the snap ring (605), or damage may occur to the spring assembly (606).
6. Compress the forward clutch return spring assembly. Use the J 23327:  spring compressor.
7. Remove the return spring snap ring (605).
8. Remove the J 23327:  spring compressor.
Fig 3: View Of Forward Clutch Piston Assembly & Forward Clutch Housing
Courtesy of GENERAL MOTORS CORP.
9. Remove the forward clutch return spring assembly (606).
10. Remove the forward clutch piston and seal assembly (607).
Fig 4: Identifying J 45398 Components
Courtesy of GENERAL MOTORS CORP.
NOTE: If the seal assembly is not damaged do not remove the seal assembly.
11. Inspect the forward clutch inner seal assembly (608) for damage.
12. 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.
NOTE: Align puller J 258031-A:  seal remover (1) with the groove located on the outside of J 45398-1 to aid in removal.
13. Use J 258031-A:  seal remover (1) to remove the seal.
Fig 5: Inspection Areas On Forward Clutch Assembly Housing
Courtesy of GENERAL MOTORS CORP.
14. Inspect the housing, the plates, the bushings, the splines, the band apply surface, the roller clutch race, and the spring assembly.
15. Inspect fluid feed holes for proper openings.
16. Inspect the retainer and ball assembly for proper openings.
17. Inspect the piston and seal assembly for cut seals or other damage. The piston and seal assemblies are reusable, if not damaged.
18. Clean and dry all of the components.