GM Service Manual Online
For 1990-2009 cars only

Locking Differential Disassemble 8.6/9.5LD /11.5 Inch Axles

Special Tools

J 26252 Positraction Bushing Remover

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

  2. Object Number: 6341  Size: SH

    Note: 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.

  3. Using the J 26252 remover , remove the governor bushing.

  4. Object Number: 6342  Size: SH

    Note: 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.

  5. Using the J 26252 remover , remove the latching bracket assembly bushing.
  6. Remove the pinion shaft lock bolt.
  7. Remove the pinion shaft.
  8. Note: Mark the pinion gears and thrust washers accordingly for re-assembly.

  9. Remove the differential pinion gears and the thrust washers by rotate the pinion gears and roll the pinion gears and the thrust washers out of the case through the differential opening.
  10. Remove the thrust block, right side gear and clutch discs assembly and the right side shim..

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

  13. Object Number: 790754  Size: SH
  14. Remove the left side gear thrust washer.

Locking Differential Disassemble 10.5 Inch Axle

  1. Remove the differential case assembly. Refer to Differential Replacement.
  2. Remove the differential 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. Use the yoke hole location to pry and separate the differential case halves.
  8. Hold the locking differential cam, side gear, and the clutch plate assembly in the right side case half.

  9. Object Number: 882817  Size: SH
  10. Remove the differential governor.

  11. Object Number: 882818  Size: SH
  12. Remove the differential governor lock.

  13. Object Number: 882823  Size: SH
  14. Remove the locking differential thrust block.

  15. Object Number: 882827  Size: SH

    Note: 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.

  16. Remove the locking differential spider, pinion gears and the thrust washers.

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

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

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

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

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