What is the difference between a 1-way and 1.5-way LSD?

A 1-way LSD primarily locks during acceleration, helping to put power down more evenly to both wheels. A 1.5-way LSD locks during acceleration and partially during deceleration (engine braking), which can help stabilize the car during corner entry and exit. The 1.5-way offers a more pronounced effect on handling dynamics.

What type of fluid should I use with this differential?

Limited-slip differentials require specific LSD-compatible gear oil. It is crucial to use the correct weight and type of fluid recommended by Cusco or your mechanic to ensure proper operation and longevity of the differential.

Does this differential come with all necessary installation hardware?

Typically, performance differentials like this are sold as the unit itself. You may need to purchase additional items such as new seals, gaskets, and specialized gear oil separately. It is recommended to consult the manufacturer's installation guide or a professional mechanic for a complete parts list.

Specifications

Brand: Cusco
Part #: LSD 471 F
UPC: 4996338008107

Cusco LSD Type-RS BK3P 1W (1&2W)

Name: Cusco LSD Type-RS BK3P 1W (1&2W)
Brand: Cusco
SKU: cusco-cusco-lsd-type-rs-bk3p-1w-1-2w-t14-478898
Price: 1536.00 USD
Availability: BackOrder

$1536.00

On Backorder

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Cusco LSD Type-RS BK3P 1W (1&2W) for improved traction and cornering.

Key Features

This is a Cusco Type-RS limited-slip differential.
It is available in a 1-way or 1.5-way configuration for tunable performance.
The clutch-type design provides improved traction and stability under acceleration.
This differential is designed to enhance cornering performance and driver control.
It is a direct replacement for the factory differential, though professional installation is recommended.
Cusco is a well-known brand in the performance automotive aftermarket.

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About this part

Product Details

If you're looking to get the most out of your car's handling, especially during spirited driving or track use, a limited-slip differential (LSD) is a key component. This Cusco Type-RS differential is designed to replace your factory open differential, allowing both rear wheels to receive power more evenly. This means better traction coming out of corners and improved stability under acceleration, making your car feel more planted and responsive.

The Type-RS is a clutch-type LSD, which uses a series of clutch plates to manage the torque split between the wheels. Cusco offers this unit in either a 1-way or 1.5-way configuration, depending on your preference for how it engages during acceleration and deceleration. The 1.5-way version offers a more aggressive lock-up during both throttle application and lift-off, which can help stabilize the rear end during corner entry and exit. This design is well-suited for drivers who want a noticeable improvement in handling dynamics and a more predictable feel from the drivetrain.

Installation of a differential like this is a significant job, often requiring specialized tools and knowledge of drivetrain components. It's important to ensure you have the correct differential fluid for your specific application, as well as any necessary seals or gaskets. Because this is a performance-oriented part, it's often paired with other drivetrain upgrades to maximize its benefits. Consult with a professional mechanic to ensure proper installation and fluid selection for your vehicle.