GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 22912-01 Bearing Puller


    Object Number: 4810  Size: SH

    Important: The synchronizer hubs and the sliding sleeves are a selected assembly. Keep these parts together as originally assembled. Replace worn or broken keys and springs.

  1. Scribe a mark on the synchronizer hub and on the sleeve. This will help you to reinstall the parts in the same position.

  2. Object Number: 38500  Size: SH
  3. Remove the following parts:
  4. 2.1. The 4th speed gear blocking ring
    2.2. The 3rd/4th speed gear synchronizer
    2.3. The 3rd speed gear blocker ring
  5. Remove the 3rd speed gear using the J 22912-01 and a hydraulic press.

  6. Object Number: 38503  Size: SH
  7. Remove the 3rd speed gear needle bearing assembly and the spacer.

  8. Object Number: 38504  Size: SH
  9. Remove the 2nd speed gear retainer ring.

  10. Object Number: 38747  Size: SH
  11. Remove the thrust washer and the 2nd speed gear.

  12. Object Number: 38514  Size: SH
  13. Remove the 2nd speed gear needle bearing assembly and the spacer.

  14. Object Number: 38516  Size: SH
  15. Remove the synchronizer spiral retaining ring.

  16. Object Number: 38518  Size: SH
  17. Remove the following parts:
  18. 9.1. The 1st speed gear thrust washer
    9.2. The 1st/2nd speed gear synchronizer inner cone
    9.3. The 1st/2nd speed gear synchronizer outer cone
    9.4. The 1st/2nd speed gear synchronizer blocking ring

    Object Number: 4810  Size: SH
  19. Scribe a mark on the synchronizer hub and on the sleeve. This will help you to reinstall the parts in the same position.
  20. Remove the 1st/2nd speed synchronizer spring and the inserts from the reverse sliding gear.

  21. Object Number: 38519  Size: SH
  22. Remove the reverse sliding gear.

  23. Object Number: 38521  Size: SH
  24. Remove 5th speed driven gear, using the J 22912-01 and a hydraulic press.

  25. Object Number: 38522  Size: SH
  26. Remove the mainshaft rear bearing assembly.

  27. Object Number: 38748  Size: SH
  28. Remove the 1st speed gear.

  29. Object Number: 38523  Size: SH
  30. Remove the following parts in order:
  31. 16.1. The 1st speed gear needle bearing assembly
    16.2. The bearing sleeve ball
    16.3. The bearing sleeve ball (5 mm diameter)

    Object Number: 38525  Size: SH
  32. Remove the following parts in order:
  33. 17.1. The 1st speed gear synchronizer outer cone
    17.2. The 1st speed gear synchronizer inner cone
    17.3. The 1st speed gear synchronizer blocking ring