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Home >> Cadillac >> 2008 >> Escalade AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 105 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - Off Vehicle >> Input Housing and Shaft Assembly Assemble >> Assemble

Input Housing and Shaft Assembly Assemble: Assemble

WARNING: This page is about a different car, the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Locating Forward Clutch Housing O-Ring Seal
    GM7431Courtesy of GENERAL MOTORS CORP.
  1. Install a new input to forward clutch housing O-ring seal (622).
    2. Fig 2: Identifying 3rd & 4th Clutch Piston Inspection Areas
    GM7437Courtesy 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.
    4. Fig 3: Forward Clutch Housing Inspection Areas
    GM7438Courtesy 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
    5. Fig 4: Inspecting Forward Clutch Piston For Damage Or Wear
    GM55912Courtesy of GENERAL MOTORS CORP.
  5. Inspect the forward clutch piston for the following conditions:
    • Porosity or damage
    • Seal damage
    • Apply leg damage
    6. Fig 5: Forward Clutch Piston & Forward Clutch Housing
    GM55911Courtesy of GENERAL MOTORS CORP.
  6. Install the forward clutch piston (630) into the forward clutch housing (628).
    7. Fig 6: Locating 3rd & 4th Spring Assembly
    GM55910Courtesy of GENERAL MOTORS CORP.
  7. Install the 3rd and 4th spring assembly (626) into the 3rd and 4th clutch apply ring (625).
    8. IMPORTANT: 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).
    9. Fig 7: View Of J 29883 Installed In Input Housing
    GM55919Courtesy of GENERAL MOTORS CORP.
  9. Install the J 29883  on the input housing. See Special Tools .
  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  from the input housing. See Special Tools .
    12. Fig 8: Inspection Areas On Overrun Clutch Piston
    GM55918Courtesy 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
    13. Fig 9: Identifying Overrun Clutch Piston
    GM55920Courtesy of GENERAL MOTORS CORP.
  13. Install the J 29882  on the input housing. See Special Tools .
  14. Install the overrun clutch piston (632) into the input housing.
  15. Remove the J 29882  from the input housing. See Special Tools .
    16. Fig 10: Installing Overrun Clutch Piston Outer Seal With J 26744-A
    GM55921Courtesy of GENERAL MOTORS CORP.
  16. Using the J 26744-A  , carefully install the overrun clutch piston outer seal. See Special Tools .
    17. Fig 11: View Of Overrun Clutch Spring Assembly
    GM55922Courtesy of GENERAL MOTORS CORP.
  17. Install the overrun clutch spring (634) assembly.
    18. Fig 12: Installing J 23327-1 & J 25018-A
    GM5759Courtesy of GENERAL MOTORS CORP.
  18. Install the J 23327-1  and the J 25018-A  , and compress the overrun clutch spring assembly using J 23456  . See Special Tools .
  19. Install the overrun clutch spring retainer snap ring (635).
  20. Remove the J 23327-1  and the J 25018-A  . See Special Tools .
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