FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Chatter on Corners

Chatter on corners is a condition where the whole rear end vibrates when the vehicle is turning. The vibration is plainly felt and heard. In conventional axles, extra differential thrust washers cause a condition of partial lockup that creates this chatter.

Chatter noise on Traction-Lok axles can usually be traced to erratic movement between adjacent clutch plates and can be corrected with a lubricant change that includes Additive Friction Modifier C8AZ-19B546-A or equivalent meeting Ford Specification EST-M2C118-A.