What is the difference between a 1.5-way and a 2-way LSD?

A 1.5-way LSD locks up during acceleration and provides partial locking during deceleration. A 2-way LSD locks up during both acceleration and deceleration. The 1.5-way offers a balance of traction and smoother deceleration behavior.

What type of fluid should I use with this differential?

It is crucial to use a high-quality, specialized differential fluid recommended by Cusco for limited-slip differentials. Using the wrong fluid can damage the LSD. Always refer to the manufacturer's installation instructions for the specific fluid type and capacity.

Does this LSD come with all necessary installation hardware?

This listing is for the Cusco Type-RS 1.5-Way LSD unit itself. It is recommended to consult the manufacturer's documentation or a qualified mechanic to determine if any additional hardware, seals, or gaskets are required for installation specific to your GC8.

Specifications

Brand: Cusco
Part #: LSD 181 L15
UPC: 4996338017062

Cusco Subaru GC8 Rear LSD Type-RS 1.5Way / 1.5 and 2 Way

Name: Cusco Subaru GC8 Rear LSD Type-RS 1.5Way / 1.5 and 2 Way
Brand: Cusco
SKU: cusco-cusco-subaru-gc8-rear-lsd-type-rs-1-5way-1-5-and-2-way-t14-84378
Price: 1420.80 USD
Availability: BackOrder

$1420.80

On Backorder

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Key Features

Fits Subaru GC8 chassis.
Cusco Type-RS 1.5-Way limited-slip differential.
Enhances traction and handling during acceleration and cornering.
Features a 1.5-way engagement for locking under acceleration and deceleration.
Designed for a direct fit into the factory differential housing.
Well-made internal components with Cusco's cone clutch system.

This differential is designed for the Subaru GC8 chassis. Please verify fitment with your specific vehicle's drivetrain configuration.

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About this part

Product Details

This is the Cusco Type-RS 1.5-Way limited-slip differential (LSD) for the Subaru GC8 chassis. If you're looking to significantly improve your car's traction and handling, especially during spirited driving or on the track, an LSD is a critical component. It replaces your factory open differential, allowing both rear wheels to receive power more consistently, even when one wheel loses grip. This means better acceleration out of corners and more predictable handling under load.

The Type-RS model from Cusco is known for its advanced design, offering a 1.5-way engagement. This means it locks up under acceleration for maximum traction, but it also provides a degree of locking under deceleration. This offers a unique balance, enhancing cornering stability without being overly intrusive during normal driving. The internal components are well-made, featuring Cusco's signature cone clutch system that allows for smooth engagement and a wide range of adjustability. This particular unit is designed specifically for the GC8 Subaru chassis, ensuring a direct fit into the factory differential housing. Installation will require removing the rear differential and replacing the factory unit with this LSD, which is a job best suited for a mechanic experienced with drivetrain components.

When installing this LSD, it's important to use the correct differential fluid and follow the manufacturer's break-in procedure. This typically involves a period of gentle driving and specific fluid changes to properly seat the clutch plates. This ensures the longevity and optimal performance of the differential. This Cusco LSD is a solid option for GC8 owners looking to take their car's performance to the next level, offering a noticeable improvement in grip and control.