Cusco LSD RS 1.5/1-Way (1.5W) ZC31S F

The Cusco RS 1.5/1-Way limited-slip differential uses a unique cam mechanism that allows for two distinct engagement profiles. In this 1.5-way configuration, it engages on acceleration for strong traction, but also provides a subtle amount of lock on deceleration. This design is particularly beneficial for performance driving, offering improved cornering stability and predictable handling. The RS series is built with Cusco's signature attention to detail, ensuring reliability for spirited driving and track use.

This differential is constructed with high-strength materials and features precision-machined internal components. The RS series specifically uses a multi-plate clutch system that is designed for smooth engagement and consistent performance. The 1.5-way setting means that when you get on the throttle, the differential locks up firmly to put power down to both wheels. When you lift off the gas or brake, it still offers some locking effect, which helps to stabilize the rear end of the car during cornering. This balance makes it a popular choice for drivers looking for a noticeable improvement in grip and control without the harshness sometimes associated with other types of LSDs.

Installation of a limited-slip differential typically involves removing the factory differential and replacing it with this unit. It's a job that requires specific tools and knowledge of drivetrain components. For drivers looking to maximize their vehicle's performance potential, especially in autocross or track day scenarios, this Cusco LSD offers a significant advantage by ensuring that power is delivered effectively to the drive wheels, even during aggressive maneuvers.