GM Service Manual Online
For 1990-2009 cars only

Locking Differential Cam Unit Disassemble 8.6 Inch Axle

  1. Remove the locking differential clutch disc thrust washer.

  2. Object Number: 6343  Size: SH
  3. Using the appropriate tool, remove the external snap ring retainer.

  4. Object Number: 2158496  Size: SH
  5. Remove and disassemble the locking differential clutch disc set (1).
  6. Note: The locking differential clutch disc thrust washer is NOT serviced separately. It is serviced with the locking differential clutch disc set.

  7. Remove the locking differential clutch disc thrust washer (4).
  8. Note: The locking differential clutch disc guide is NOT serviced separately. It is serviced with the locking differential clutch disc set.

  9. Remove the locking differential clutch disc guide (5).
  10. Remove the locking differential cam (3).

Locking Differential Cam Unit Disassemble 9.5 INch Axle

Special Tools

    • J 22912-01 Split Plate Bearing Puller
    • J 45232 Adjuster Bearing Replacer (Left Side)
  1. Measure and record the overall length of the locking differential side gear assembly from the front of the locking differential side locking differential side gear to thrust washer.
  2. Remove the guide clips.

  3. Object Number: 886078  Size: SH
  4. Using the J 22912-01 puller  (2), J 45232 replacer  (1) and a hydraulic press, remove the locking differential side gear thrust sleeve.

  5. Object Number: 2158654  Size: SH
  6. Remove the locking differential clutch disc thrust washer (7).
  7. Remove the locking differential side gear thrust sleeve (6).
  8. Remove the locking differential clutch disc set (1).
  9. Note: The locking differential clutch disc guide is NOT serviced separately. It is serviced with the locking differential clutch disc assembly.

  10. Remove the locking differential clutch disc guide.
  11. Disassemble the locking differential clutch disc assembly (1).

Locking Differential Cam Unit Disassemble 10.5 Inch Axle

Special Tools

    • J 22912-01 Split Plate Bearing Puller
    • J 45232 Adjuster Bearing Replacer (left Side)
  1. Measure and record the overall length of the locking differential cam, side gear and clutch plate assembly from the front of the gear to the back of the thrust sleeve, including the locking differential clutch disc thrust washer.
  2. Remove the guide clips.

  3. Object Number: 886078  Size: SH
  4. Using a hydraulic press, the J 22912-01 puller  (2) and the J 45232 replacer  (1), remove the thrust sleeve.

  5. Object Number: 2158380  Size: SH
  6. Remove the differential side gear shim (6).
  7. Remove the locking differential side gear thrust sleeve (5).
  8. Remove and disassemble the locking differential clutch disc set (7).
  9. Note: The locking differential clutch disc thrust washer is not serviced separately. It is serviced with the locking differential clutch disc set.

  10. Remove the locking differential clutch disc thrust washer (3).
  11. Note: The locking differential clutch disc guide is not serviced separately. It is serviced with the locking differential clutch disc set.

  12. Remove the locking differential clutch disc guide (4).
  13. Remove the locking differential cam (2).