GM Service Manual Online
For 1990-2009 cars only

Locking Differential Disassemble 10.5 Inch Axle

  1. Remove the differential assembly. Refer to Differential Replacement.
  2. Remove the ring gear. Refer to Drive Pinion and Ring Gear Replacement.
  3. Remove the differential side bearings. Refer to Differential Side Bearings Replacement.

  4. Object Number: 882811  Size: SH
  5. Remove the differential case screws.

  6. Object Number: 882813  Size: SH
  7. Separate the case halves by performing the following steps:
  8. 5.1. Pry the case halves apart at the yoke hole location.
    5.2. Hold the locking differential cam, side gear and clutch plate assembly in the right side case half.

    Object Number: 882817  Size: SH
  9. Remove the governor assembly.

  10. Object Number: 882818  Size: SH
  11. Remove the latching bracket assembly.

  12. Object Number: 882823  Size: SH
  13. Remove the thrust block.

  14. Object Number: 882827  Size: SH
  15. Remove the following components from the differential case:
  16. • The locking differential spider
    • The differential pinion gears
    • The differential pinion gear thrust washers
  17. Mark the differential spider, the differential pinion gears and the differential pinion gears accordingly in order to re-assemble the components correctly into the differential case.

  18. Object Number: 882828  Size: SH
  19. Remove the locking differential side gear.

  20. Object Number: 882829  Size: SH
  21. Remove the left side clutch plates and the guide clips.

  22. Object Number: 882831  Size: SH
  23. Remove the left side gear thrust washer.

  24. Object Number: 882834  Size: SH
  25. Remove the right side cam unit and clutch plate assembly.

  26. Object Number: 882850  Size: SH
  27. Remove the right side locking differential clutch disc thrust washer.
  28. Disassemble the left side differential side gear and clutch disc assembly. Refer to Locking Differential Clutch Disc Assembly Disassemble.
  29. Disassemble the right side locking differential side gear cam unit and clutch disc assembly. Refer to Locking Differential Cam Unit Disassemble.

Locking Differential Disassemble 8.6 Inch Axle

Special Tools

J 26252 Locking Differential Governor Remover

  1. Remove the ring gear, if necessary. Refer to Drive Pinion and Ring Gear Replacement.

  2. Object Number: 6341  Size: SH
  3. Remove the governor bushing using the J 26252 .
  4. Remove the governor assembly.
  5. To aid in the removal of the governor assembly, turn the side gear as necessary to position the governor assembly between two of the side gear teeth.


    Object Number: 6342  Size: SH
  6. Remove the latching bracket assembly bushing using the J 26252 .
  7. To aid in the removal of the latching bracket assembly, turn the side gear as necessary to position the latching bracket assembly between two of the side gear teeth.

  8. Remove the pinion shaft lock bolt.
  9. Remove the pinion shaft.
  10. Remove the differential pinion gears and the thrust washers.
  11. Rotate the pinion gears and roll the pinion gears and the thrust washers out of the case through the differential window.

    Mark the pinion gears and thrust washers accordingly for re-assembly.

  12. Remove the thrust block.
  13. Remove the right side gear and clutch discs assembly.
  14. Remove the right side shim.

  15. Object Number: 790759  Size: SH
  16. Remove the left side gear cam unit and clutch disc assembly.

  17. Object Number: 790754  Size: SH
  18. Remove the left side gear thrust washer.