Cusco LSD RS 1.5-Way Only Rear Spec-F 22+ Toyota GR86 / Subaru BRZ (ZN8)

This is the Cusco LSD RS 1.5-Way rear differential, specifically designed for the 2022 and newer Toyota GR86 and Subaru BRZ (ZN8 chassis). A limited-slip differential, or LSD, is crucial for performance driving because it helps manage power distribution between the rear wheels, especially during cornering. This particular unit is a 1.5-way type, meaning it engages more aggressively on acceleration than deceleration, providing a stable feel when you're powering out of a turn.

Cusco is well-known for its performance drivetrain components, and this RS model is built with their experience in mind. The RS designation often indicates a focus on responsiveness and a solid feel. It's designed to fit directly into the factory differential housing, simplifying installation for those familiar with drivetrain work. The 1.5-way action is a popular choice for track use and spirited street driving, as it offers a good balance between traction on corner exit and predictable behavior when braking or lifting off the throttle. This unit is intended for the rear axle, working to improve grip and reduce inside wheel spin under load.

When installing a differential like this, it's important to follow the manufacturer's break-in procedure carefully. This typically involves a period of moderate driving followed by a fluid change to ensure the clutch plates seat properly. This process is key to the longevity and performance of the LSD. You'll want to ensure you have the correct differential fluid specified by Cusco for optimal operation and to protect the internal components.