Input Housing and Shaft Assembly Assemble

Special Tools

• J 23327-1:  Forward Clutch Spring Compressor (Bridge)
• J 23456:  Booster and Clutch Pack Compressor
• J 25018-A:  Clutch Spring Compressor Adapter
• J 26744-A:  Seal Installer
• J 29882:  Overrun Clutch Seal Protector
• J 29883:  Forward Clutch Seal Protector

Fig 1: Locating Forward Clutch Housing O-Ring Seal
Courtesy of GENERAL MOTORS CORP.
1. Install a new input to forward clutch housing O-ring seal (622).
Fig 2: Identifying 3rd & 4th Clutch Piston
Courtesy of GENERAL MOTORS CORP.
2. Inspect the 3rd and 4th clutch piston (623) for the following conditions:
   • Porosity or damage
   • Seal damage
3. Install the 3rd and 4th clutch piston (623) into the input housing.
Fig 3: Forward Clutch Housing Inspection Areas
Courtesy of GENERAL MOTORS CORP.
4. Inspect the forward clutch housing (628) for the following conditions:
   • Proper check ball operation
   • Damage or distortion
   • Burrs in the seal areas
   • Cracks
Fig 4: Inspecting Forward Clutch Piston
Courtesy of GENERAL MOTORS CORP.
5. Inspect the forward clutch piston for the following conditions:
   • Porosity or damage
   • Seal damage
   • Apply leg damage
Fig 5: Installing Forward Clutch Piston
Courtesy of GENERAL MOTORS CORP.
6. Install the forward clutch piston (630) into the forward clutch housing (628).
Fig 6: Locating 3rd & 4th Spring Assembly
Courtesy of GENERAL MOTORS CORP.
7. Install the 3rd and 4th spring assembly (626) into the 3rd and 4th clutch apply ring (625).
NOTE: The forward clutch piston (630) apply legs must be indexed with the 3rd and 4th clutch apply ring (625) legs.
8. Install the forward clutch housing (628) and forward clutch piston (630) into the 3rd and 4th apply ring (625).
Fig 7: View Of J 29883 Installed In Input Housing
Courtesy of GENERAL MOTORS CORP.
9. Install the J 29883:  seal protector on the input housing.
10. Install the 3rd and 4th clutch apply ring and the forward housing and piston assembly using the following procedure:
    • Hold the assembly by the 3rd and 4th clutch apply ring (625) legs during installation.
    • Do not let the forward clutch piston (630) separate from the forward clutch housing.
    • Firmly seat the assembly.
11. Remove the J 29883:  seal protector from the input housing.
Fig 8: Inspection Areas On Overrun Clutch Piston
Courtesy of GENERAL MOTORS CORP.
12. Inspect the overrun clutch piston (632) for the following conditions:
    • Porosity or damage
    • Seal damage
    • Overrun clutch ball proper operation
Fig 9: Installing J 29882 & Overrun Clutch Piston
Courtesy of GENERAL MOTORS CORP.
13. Install the J 29882:  seal protector on the input housing.
14. Install the overrun clutch piston (632) into the input housing.
15. Remove the J 29882:  seal protector from the input housing.
Fig 10: Installing Overrun Clutch Piston Outer Seal
Courtesy of GENERAL MOTORS CORP.
16. Using the J 26744-A:  seal installer, carefully install the overrun clutch piston outer seal.
Fig 11: View Of Overrun Clutch Spring Assembly
Courtesy of GENERAL MOTORS CORP.
17. Install the overrun clutch spring (634) assembly.
Fig 12: Installing J 23327-1 & J 25018-A
Courtesy of GENERAL MOTORS CORP.
18. Install the J 23327-1:  spring compressor (bridge) and the J 25018-A:  spring compressor adapter, and compress the overrun clutch spring assembly using J 23456:  clutch pack compressor.
19. Install the overrun clutch spring retainer snap ring (635).
20. Remove the J 23327-1:  spring compressor (bridge) and the J 25018-A:  spring compressor adapter.