Eliminate that annoying limited-slip differential (LSD) chatter and ensure a proper break-in for your new gears with Red Line Limited-Slip Friction Modifier (Part #80301) from Straight Six Imports. This vital 4 oz additive is engineered for all clutch-type limited-slip and Posi-traction units to fine-tune the friction level for optimal performance.

Whether you're dealing with a new diff or silencing an older one, this friction modifier is your solution:

• Eliminates Chatter: Add gradually (1 oz at a time) to clutch-type limited-slip units to perfectly adjust the friction for silent operation without compromising lock-up.

• Reduces Break-In Temperatures: Crucial for new gear sets, it can reduce break-in operating temperatures by as much as 50°F, protecting the gear hardening from premature wear.

• Universal Compatibility: Safe for use with all petroleum and synthetic GL-5 gear oils, including Red Line's own high-performance gear oils (especially recommended with NS series).

• Extreme Pressure Protection: Formulated with extreme pressure additives for the ultimate protection of hypoid gears in both street and racing applications.

Maximize the life and performance of your differential with the proven formulation of Red Line 80301.