Limited-slip clutch packs or cones that need servicing
might be heard as a chatter or a rapid clicking noise that creates a vibration in the vehicle. Chattering is usually noticed
when rounding a comer. A change of differential lubricant and adding friction modifier to the fluid some times
corrects this problem. After draining the oil, replace it with the manufacturer's suggested friction
modifier and lubricant. Road test the vehicle again.