Limited-Slip Additive / Friction Modifier

Maintains friction modifiers in limited-slip differential fluid to ensure smooth locking action and prevent chatter or clunking.

Limited-Slip Additive (also called Friction Modifier) is a chemical treatment designed specifically for limited-slip and locking differentials to maintain proper clutch pack friction and operation. It prevents chatter, clunking, and loss of locking function that can occur when the differential fluid ages. This additive is essential for keeping limited-slip differentials functioning smoothly and providing consistent traction control.

⚠️ Owners Often Notice

If the Limited-Slip Additive / Friction Modifier is starting to fail, these are the signs owners most commonly report before it gets worse:

Related Services

Services commonly performed on or around this part.