GM Service Manual Online
For 1990-2009 cars only

Condition

Action

There is little or no preload on the latching bracket.

Replace the governor assembly and the latching bracket. Refer to Locking Differential Disassemble and Locking Differential Assemble .

Flyweights in the governor assembly are stuck closed.

Replace the governor assembly and the latching bracket. Refer to Locking Differential Disassemble and Locking Differential Assemble .

The drive teeth on the governor or cam gear assembly are broken.

Replace the cam plate, the governor assembly, and the latching bracket. Refer to the following:

  1. Locking Differential Disassemble
  2. Locking Differential Cam Unit Disassemble
  3. Locking Differential Cam Unit Assemble
  4. Locking Differential Assemble

The clutch plates are broken.

Replace the clutch plates and the wave spring. Refer to the following:

  1. Locking Differential Disassemble
  2. Locking Differential Clutch Disc Assembly Disassemble
  3. Locking Differential Cam Unit Disassemble
  4. Locking Differential Cam Unit Assemble
  5. Locking Differential Assemble