GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J-08614-A
        Pinion Flange Holder and Remover
    • J 23444-A Extreme Press Lubricant - 1/4-Ounce Tube
    • J 29369-2 Bushing and Bearing Remover - 2-3 in
    • J-44873-2 Shoulder Bolts
    • J 44882 Pinion Press Support Bar

    Object Number: 696401  Size: SH
  1. Remove the 3 bolts from the bracket (1).
  2. Remove the bracket (1).

  3. Object Number: 696404  Size: SH
  4. Remove the drain plug (1).

  5. Object Number: 804370  Size: SH
  6. Remove the fill plug (1) and drain the fluid.

  7. Object Number: 1400837  Size: SH
  8. Install J-08614-A  (2) and J-44873-2  (1) to the pinion flange.

  9. Object Number: 1400841  Size: SH
  10. Using a ratchet with a 27 mm socket, remove the pinion nut.

  11. Object Number: 1400842  Size: SH
  12. Insert the forcing screw assembly (1) through the slots in J-08614-A  (2).
  13. Turn the blue collar (1) until it locks into the grooves on the under side of the J-08614-A  (2).
  14. Note: Use high pressure grease J 23444-A on the screw threads.

  15. Tighten the forcing screw to remove the pinion flange.

  16. Object Number: 1400843  Size: SH
  17. Remove the J-08614-A  (3), the J-44873-2  (2), and the forcing screw assembly (1) from the pinion flange.

  18. Object Number: 696418  Size: SH
  19. Remove all bolts (2) from the side cover (1).
  20. Use pry point relief slots to remove the cover.

  21. Object Number: 696428  Size: SH
  22. Remove the carrier assembly (1) from the housing.

  23. Object Number: 1400845  Size: SH

    Note: Perform this step ONLY if the bearing needs to be replaced. DO NOT use old bearing.

  24. Using the J 29369-2 and a slide hammer, remove the stub shaft inner bearing (2) from the carrier bore (1).

  25. Object Number: 696454  Size: SH
  26. Drive the seal (1) out from the inside of the carrier assembly housing.

  27. Object Number: 696421  Size: SH

    Caution: The bearing cup shims must be removed before the seal can be removed. Installing the seal through the bearing cup will damage the new seal. It may be necessary to heat the housing in order to remove the cup.

  28. Remove the bearing cup (1), shims (2) and seal (3) from the side cover (4).
  29. Mark or tag the bearing cup (1) and shims (2) for proper assembly.


    Object Number: 696425  Size: SH
  30. Remove the axle seal (2) from the side cover (1).

  31. Object Number: 696458  Size: SH
  32. Remove the pinion oil seal (1) and slinger washer (2) from the housing.

  33. Object Number: 804373  Size: SH
  34. Tighten the forcing screw in order to push out the pinion gear. The gear will spin when it is being pushed out. When the gear stops spinning, stop pushing. The gear teeth will contact the housing.
  35. Remove the J 44882 .

  36. Object Number: 804374  Size: SH
  37. Install the old pinion nut on the threads of the pinion shaft. Hold the shaft so the gear head faces up, and drive out the pinion shaft, so that it does not contact the housing.

  38. Object Number: 696464  Size: SH
  39. Remove the bearing (1), collapsible spacer (2), and pinion shaft (3) from the housing.