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

A 2-Way LSD locks up during both acceleration and deceleration. A 1.5-Way LSD locks up strongly during acceleration and less aggressively during deceleration. This Cusco unit offers a blend, providing stability under power and a more predictable feel when lifting off the throttle.

What type of gear oil should I use with this differential?

Clutch-type limited-slip differentials require specific gear oil to function correctly and prevent premature wear. It is recommended to consult the Cusco installation manual or contact their support for the exact specifications on the required gear oil type and viscosity for this LSD.

Does this differential come with all the necessary installation hardware?

This product includes the Cusco LSD Type-MZ 2-Way differential unit itself. It is recommended to refer to the manufacturer's installation instructions to determine if any additional hardware, seals, or gaskets are needed for proper installation, as these are typically not included.

Specifications

Brand: Cusco
Part #: LSD 183 K2
UPC: 4996338017178

Cusco LSD Type-MZ 2-Way (1.5&2 Way) Rear for Subaru 98-00 GC8 W/Suretrac Diff

Name: Cusco LSD Type-MZ 2-Way (1.5&2 Way) Rear for Subaru 98-00 GC8 W/Suretrac Diff
Brand: Cusco
SKU: cusco-cusco-lsd-type-mz-2-way-1-5-2-way-rear-for-subaru-98-00-gc8-w-suretrac-dif-t14-105740
Price: 1420.80 USD
Availability: BackOrder

$1420.80

On Backorder

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Key Features

Fits 1998-2000 Subaru GC8 with Suretrac differential.
Cusco Type-MZ 2-Way (1.5&2 Way) clutch-type limited-slip differential.
Provides improved traction and stability during acceleration and deceleration.
Designed for performance driving applications like track days and autocross.
Well-built unit from a popular drivetrain component manufacturer.

This differential is designed for the 1998-2000 Subaru GC8 models equipped with a Suretrac differential. Please verify your existing differential type before purchase.

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About this part

Product Details

This Cusco LSD Type-MZ 2-Way differential is what you get in the box: the differential unit itself, designed to replace the factory open or limited-slip differential in your 1998-2000 Subaru GC8 with a Suretrac differential. This is a significant upgrade for performance driving, especially if you're pushing your car hard on track or autocross courses. It’s a well-built unit that’s known for its smooth engagement and tunable characteristics.

The Type-MZ is a clutch-type limited-slip differential, meaning it uses friction plates to transfer power to the wheel with the most grip. What makes this one special is its 2-Way (or 1.5-Way) operation. In simple terms, it locks up under both acceleration and deceleration. This provides a more stable feel when cornering, as it helps keep both rear wheels turning together whether you're on the throttle or lifting off. The 1.5-Way aspect means it locks up slightly less aggressively on deceleration than on acceleration, which can make it feel a bit more predictable and less prone to unsettling the car during aggressive braking or corner entry. Cusco is well-known for their drivetrain components, and this differential is a popular choice for Subaru enthusiasts looking to improve traction and handling.

Installing a limited-slip differential is a job that requires precision. You'll want to make sure you have the correct gear oil for clutch-type LSDs, as specified by Cusco. It's also a good idea to have a shop manual handy for your specific GC8 model to ensure proper installation and setup. This differential is a solid option for anyone looking to get the most out of their Subaru's rear-wheel traction.