Rear Axle - 8 1/4 and 9 1/4

The most common problem is a chatter noise when turning corners. Before removing a Trac-Lok unit for repair, drain, flush and refill the axle with the specified lubricant. Refer to Lubricant Change.
A container of MOPAR Trac-Lok Lubricant (friction modifier) should be added after repair service or during a lubricant change.
After changing the lubricant, drive the vehicle and make 10 to 12 slow, figure-eight turns. This maneuver will pump lubricant through the clutches. This will correct the condition in most instances. If the chatter persists, clutch damage could have occurred.