GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 22912-B Split Plate Bearing Puller


    Object Number: 1251698  Size: SH
  1. Remove the mainshaft bearing using the J 22912-B  (1).

  2. Object Number: 1251699  Size: SH
  3. Remove the snap ring.

  4. Object Number: 1251701  Size: SH
  5. Remove the 1st gear, the flat-type 1st gear needle bearing, and the mainshaft wear plate.

  6. Object Number: 1251702  Size: SH
  7. Remove the synchronizer hub sleeve that contains the synchronizer spring.
  8. Remove the outer blocking ring.

  9. Object Number: 1251703  Size: SH
  10. Remove the keys from the 1st-2nd synchronizer gear.

  11. Object Number: 1251704  Size: SH
  12. Remove the barrel-type 1st gear needle bearing.

  13. Object Number: 1251705  Size: SH
  14. Remove the snap ring and the washer.

  15. Object Number: 1251707  Size: SH
  16. Remove the 1st-2nd synchronizer gear from the mainshaft.

  17. Object Number: 1251709  Size: SH
  18. Remove the 1st-2nd gear synchronizer ring.

  19. Object Number: 1251710  Size: SH
  20. Remove the 2nd gear using the J 22912-B  (1).

  21. Object Number: 1251711  Size: SH
  22. Remove the 2nd gear needle bearing.

  23. Object Number: 1251713  Size: SH
  24. Remove the ring and the thrust washer

  25. Object Number: 1251714  Size: SH
  26. Remove the 3rd gear and the synchronizer blocking ring.

  27. Object Number: 1251716  Size: SH
  28. Separate the synchronizer blocking ring from the 3rd gear.

  29. Object Number: 1251717  Size: SH
  30. Remove the 3rd gear needle bearing from the mainshaft.

  31. Object Number: 1251718  Size: SH
  32. Remove the synchronizer sleeve containing the keys and the spring

  33. Object Number: 1251720  Size: SH
  34. Remove the snap ring and the washer from the mainshaft.

  35. Object Number: 1251724  Size: SH
  36. Remove the 3rd-4th synchronizer gear containing the synchronizer spring.

  37. Object Number: 1251733  Size: SH
  38. Remove the 4th gear assembly.

  39. Object Number: 1251736  Size: SH
  40. Separate the synchronizer blocking ring from the 4th gear.

  41. Object Number: 1251737  Size: SH
  42. Remove the 4th gear needle bearing, the retaining ring, and the thrust washer.

  43. Object Number: 1251739  Size: SH
  44. Remove the mainshaft bearing.