What is the difference between 1.5-way and 2-way operation on this LSD?

A 1.5-way differential locks fully under acceleration but only partially under deceleration. A 2-way differential locks fully under both acceleration and deceleration. This Cusco RS LSD allows you to adjust which mode it operates in.

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

For optimal performance and to ensure the longevity of the differential, it is recommended to use the specific gear oil recommended by Cusco. Refer to the manufacturer's installation instructions for the precise specifications.

Does this limited-slip differential come with all necessary installation hardware?

This product is the differential unit itself. Installation typically requires specialized tools and may involve reusing some factory hardware or requiring additional components not included with the LSD. Always consult the manufacturer's installation guide for a complete list of requirements.

Specifications

Brand: Cusco
Part #: LSD 181 L2
UPC: 4996338017079

Cusco LSD RS 2 Way(1.5&2) Rear 92-96 Subaru GC8/97-98 SF Forester

Name: Cusco LSD RS 2 Way(1.5&2) Rear 92-96 Subaru GC8/97-98 SF Forester
Brand: Cusco
SKU: cusco-cusco-lsd-rs-2-way-1-5-2-rear-92-96-subaru-gc8-97-98-sf-forester-t14-105654
Price: 1420.80 USD
Availability: BackOrder

$1420.80

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Key Features

Fits 1992-1996 Subaru GC8 and 1997-1998 SF Forester.
Features a unique cam mechanism for adjustable 1.5-way or 2-way locking.
Allows for fine-tuning of differential lock-up during acceleration and deceleration.
Designed for improved traction and control during performance driving.
Known for smooth engagement and quiet operation compared to other performance LSDs.
Helps manage oversteer and understeer for better vehicle stability.

This differential is designed to fit 1992-1996 Subaru GC8 models and 1997-1998 SF Forester. Please verify fitment for your specific vehicle.

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About this part

Product Details

The Cusco RS 2-Way limited-slip differential (LSD) is built with a unique cam mechanism that allows for both 1.5-way and 2-way operation, depending on how you adjust it. This means you can fine-tune how the differential locks up during acceleration and deceleration to match your driving style and track conditions. It’s designed to fit 1992-1996 Subaru GC8 models and 1997-1998 SF Forester, giving you improved traction and control when you need it most.

This differential uses a special cam system that offers a distinct advantage: it can be set to operate as a 1.5-way unit, meaning it locks under acceleration but only partially under deceleration, or as a full 2-way unit that locks under both acceleration and deceleration. This adjustability is key for performance driving, allowing you to manage oversteer and understeer more effectively. The RS series LSD is known for its smooth engagement and quiet operation compared to some other performance differentials, making it a solid choice for drivers looking to enhance their Subaru's handling without excessive noise or harshness.

When installing this differential, it's important to note that it's a significant drivetrain upgrade. You'll want to ensure you have the correct gear oil specified by Cusco for optimal performance and longevity. This LSD is a popular choice for rally and track day enthusiasts looking to put down power more effectively out of corners and improve overall stability.