Special Tools

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J 22912-01 Split Plate Bearing Puller
J 45232 Adjuster Bearing Replacer (left Side)

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.
Remove the guide clips.

Fig 1: Identifying Thrust Sleeve & Special Tools J 45232 & J 22912-O1

Courtesy of GENERAL MOTORS COMPANY

Using a hydraulic press, the J 22912-01 puller (2) and the J 45232 replacer (1), remove the thrust sleeve.

Fig 2: Disassembled View Of Locking Differential Cam & Locking Differential Side Gear

Courtesy of GENERAL MOTORS COMPANY

Remove the differential side gear shim (6).
Remove the locking differential side gear thrust sleeve (5).
Remove and disassemble the locking differential clutch disc set (7).

NOTE:

The locking differential clutch disc thrust washer is not serviced separately. It is serviced with the locking differential clutch disc set.

Remove the locking differential clutch disc thrust washer (3).

NOTE:

The locking differential clutch disc guide is not serviced separately. It is serviced with the locking differential clutch disc set.

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