For 1990-2009 cars

Checks | Action
--- | ---
The lubricant is contaminated. | Drain and flush the axle housing thoroughly. Refill with the correct lubricant. Refer to Rear Axle Lubricant Replacement.
The clutch plates are deteriorated. | Replace the clutch plates. Refer to the following:

• | Locking Differential Disassemble

• | Locking Differential Clutch Disc Assembly Disassemble

• | Locking Differential Cam Unit Disassemble

• | Locking Differential Cam Unit Assemble

• | Locking Differential Assemble