Cusco CZ4A LSD RS F Compact 1W(1&1.5)

The Cusco RS Series clutch-type limited-slip differential (LSD) is built with a compact 1.5-way design, meaning it engages on both acceleration and deceleration, but with a stronger bias on acceleration. This specific model, the RS F Compact 1W(1&1.5), is designed for the front of vehicles like the CZ4A, offering a significant improvement in traction and handling characteristics. The RS Series features a unique internal cam system that allows for smooth engagement and disengagement, reducing the chatter often associated with aggressive LSDs, while still providing a strong lock-up when needed. This makes it a popular choice for performance driving where consistent power delivery to both front wheels is crucial for cornering and acceleration out of turns.

Constructed with high-strength steel components and precision-machined internal parts, the RS Series LSD is built to withstand the demands of spirited driving. The compact design allows for easier installation in certain applications, and the 1.5-way setting provides a good balance between stability during braking and aggressive traction on throttle. This differential works by mechanically limiting the speed difference between the two front wheels, ensuring that power is sent to the wheel with more grip, which is especially beneficial during hard cornering or on uneven surfaces. The result is a more predictable and controllable vehicle, allowing you to push harder with confidence.

When installing a limited-slip differential, it's important to use the correct differential fluid as recommended by Cusco to ensure proper operation and longevity. This unit is designed to replace your factory open or limited-slip differential, and professional installation is recommended to ensure all tolerances and settings are correct. The improved traction can also help reduce wear on other drivetrain components by distributing power more evenly.