The governor assembly is tight in the case.

Free up the governor assembly. Refer to Locking Differential Disassemble and Locking Differential Assemble .

A governor flyweight spring is broken or weak.

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

The flyweight in the governor assembly is stuck open.

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

The cam plate or the governor drive teeth 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