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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1619 (Automatic Transmission - 4T45-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Off-Vehicle Repair Instructions >> Reverse Input and Second Roller Clutch Disassemble

Reverse Input and Second Roller Clutch Disassemble

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

For equivalent regional tools, refer to Special Tools .

    Fig 1: View of Reverse Input and Second Roller Clutch
    GM2179637Courtesy of GENERAL MOTORS CORP.
  1. Remove the reverse clutch snap ring (464).
  2. Remove the reverse clutch plates (one backing plate (463), three steel plates (461), three fiber plates (462), and a waved plate (460).
  3. Fig 2: Locating Return Spring Snap Ring
    GM20292Courtesy of GENERAL MOTORS CORP.
  4. Compress the reverse clutch return spring. Use the J 41232:  spring compressor and J 23327:  spring compressor or equivalent.
  5. Remove the reverse clutch return spring and the retainer snap ring (459).
  6. Remove the J 41232:  spring compressor and J 23327:  spring compressor.
  7. Fig 3: View Of Reverse Clutch Return Spring And Retainer Assembly
    GM20842Courtesy of GENERAL MOTORS CORP.
  8. Remove the reverse clutch return spring and retainer assembly (458).
  9. Remove the reverse clutch piston and seal assembly (457).
  10. Fig 4: Locating Reverse Clutch Inner Seal
    GM20293Courtesy of GENERAL MOTORS CORP.
    NOTE: If the seal assembly is not damaged do not remove the seal assembly.
  11. Inspect the reverse clutch inner seal (456).
  12. If the seal assembly is damaged, perform the following procedure in order to remove the seal assembly:
    1. Use the J 4646:  pliers or equivalent in order to install the J 41097-1:  seal remover adapter under the outer lip of the reverse clutch inner seal (456).
    2. Place the J 41097-2:  adapter ring on the inner hub of the reverse clutch housing (454).
    3. Use the puller J 25031-A:  seal remover in order to remove the seal.
  13. Fig 5: Prying Off Second Roller Clutch With Screwdrivers
    GM20294Courtesy of GENERAL MOTORS CORP.
    NOTE: Be careful when removing the second roller clutch not to score the roller clutch inner race with the screwdrivers.
  14. Remove the 2nd roller clutch (452) and roller clutch retainer (450) by prying up on the roller clutch assembly with two screwdrivers. The second roller clutch retainer is pressed onto the reverse clutch housing (454) and is not reusable after removal.
  15. Fig 6: Aligning Flat Side Of Roller Clutch Cam Face Down
    GM20296Courtesy of GENERAL MOTORS CORP.
    NOTE: In order to remove the 2nd roller clutch (452), rotate the roller clutch clockwise until indexed with the roller clutch cam (451) ramps.
  16. Remove the 2nd roller clutch (452) from the inside of the roller clutch cam (451).
  17. Fig 7: Reverse Housing Inspection Areas
    GM25516Courtesy of GENERAL MOTORS CORP.
  18. Inspect the reverse housing (454) for excessive band wear and damaged splines.
  19. Inspect the retainer and ball capsule for damage or clogging.
  20. Inspect the fluid feed holes for proper opening.
  21. Fig 8: Inspection Areas On Second Roller Clutch
    GM25510Courtesy of GENERAL MOTORS CORP.
  22. Inspect the roller clutch for excessive wear (451 and 452).
  23. Inspect the spring assembly for dislocated or damaged springs (458).
  24. Inspect all components for damage and excessive wear.
  25. Clean and dry each of the components.