GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 LaCrosse 🢒 Transmission 🢒 Automatic Transmission - 4T65-E 🢒 Input and 3rd Clutch Disassemble

Special Tools

    • J-8059 Snap Ring Pliers
    • J-23327 Clutch Spring Compressor
    • J-25018-A Clutch Spring Compressor Adapter

For equivalent regional tools, refer to Special Tools.


    Object Number: 10635 Size: SH
  1. Use a flat blade screwdriver in order to remove the retaining ring (659) from the input shaft and housing assembly (632).
  2. Remove the input clutch backing plate (658).
  3. Remove all of the input clutch plate assemblies (656, 657).
  4. Remove the input clutch waved plate (655) and the input clutch apply plate (654).

    5. Object Number: 10637 Size: SH
  5. Use a flat blade screwdriver in order to remove the retaining ring (649) from the input shaft and housing assembly (632).
  6. Remove the third clutch backing plate (648)
  7. Remove the third clutch plate assemblies (646, 647).
  8. Remove the third clutch waved plate (645).

    9. Object Number: 10638 Size: SH
  9. Remove the input shaft thrust bearing assembly (644).

    10. Object Number: 10639 Size: SH
  10. Use J-23327 spring compressor and J-25018-A compressor adapter in order to compress the third clutch spring retainer and guide assembly.

    11. Note: Do not overexpand the retaining ring during removal.

  11. Use J-8059 snap ring pliers in order to remove the retaining ring (640) from the input shaft and housing assembly.
  12. Remove J-23327 spring compressor and J-25018-A compressor adapter from the input shaft and housing assembly.

    13. Object Number: 399730 Size: SH
  13. Remove the third clutch retainer and guide spring assembly (643).
  14. Remove the third clutch piston and seal assembly (642).

    15. Object Number: 10642 Size: SH
  15. Use J-23327 spring compressor in order to compress the input clutch spring and retainer assembly.

    16. Note: Do not overexpand the retainer ring during removal.

  16. Use J-8059 snap ring pliers in order to remove the retainer ring (640) from the input shaft and housing assembly.
  17. Remove J-23327 spring compressor from the input shaft and housing assembly.

    18. Object Number: 399734 Size: SH
  18. Remove the third clutch piston housing (639).
  19. Remove the input clutch spring and retainer assembly (637).
  20. Remove the input clutch piston assembly (636).

    21. Object Number: 10640 Size: SH
  21. Remove the input clutch piston outer seal (635).

    22. Object Number: 10645 Size: SH
  22. Remove the third clutch piston inner seal (641).
  23. Remove the third clutch housing O-ring seal (638).
  24. Remove the input clutch piston inner seal (634).

    25. Caution: Do not damage the grooves on the shaft, when removing the oil seal rings.

  25. Cut the input shaft oil seal rings (628).
  26. Remove the input shaft oil seal rings (628).