Chatter on Corners

Chatter is a condition where the rear end vibrates only when the vehicle is turning. The vibration is plainly felt and heard. Chatter noise on Traction-Lok axles can usually be traced to erratic movement between adjacent clutch plates. It may be corrected by adding an additional 2-3 oz of Additive Friction Modifier or equivalent meeting Ford specification EST-M2C118-A. If this does not correct the concern, install a new 8.8 inch Traction-Lok clutch kit, new Ford High Performance Synthetic 75W-140 Rear Axle Lubricant or equivalent meeting Ford specification WSL-M2C192-A, and Additive Friction Modifier or equivalent meeting Ford specification EST-M2C118-A.