What is the main benefit of a 1-way LSD?

A 1-way LSD primarily locks the differential under acceleration. This helps improve traction when you're accelerating out of a corner and can make the car feel more stable and predictable during spirited driving.

What is the break-in procedure for this differential?

Cusco typically recommends a specific break-in procedure involving gentle driving and early oil changes to properly seat the clutch plates. Refer to the manufacturer's installation manual for the exact steps.

What type of fluid should I use with this LSD?

It is critical to use the correct differential fluid recommended by Cusco for this Type RS LSD. Using the wrong fluid can affect performance and shorten the lifespan of the unit.

Specifications

Brand: Cusco
Part #: LSD 120 C
UPC: 4996338018687

Cusco LSD Type RS 1 Way Rear for 9/89-9/93 Mazda MX-5 (NA6CE)

Name: Cusco LSD Type RS 1 Way Rear for 9/89-9/93 Mazda MX-5 (NA6CE)
Brand: Cusco
SKU: cusco-cusco-lsd-type-rs-1-way-rear-for-9-89-9-93-mazda-mx-5-na6ce-t14-252680
Price: 1296.00 USD
Availability: BackOrder

$1296.00

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Cusco LSD Type RS 1 Way Rear for 9/89-9/93 Mazda MX-5 (NA6CE). Improves traction and handling during spirited driving.

Key Features

Fits 9/89-9/93 Mazda MX-5 (NA6CE).
Cusco Type RS 1 Way Limited Slip Differential.
Designed to improve traction and handling during acceleration.
Features a clutch plate design for smooth engagement.
Helps improve turn-in response and stability under throttle.

This differential is designed for the 9/89-9/93 Mazda MX-5 Miata with the NA6CE chassis code.

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About this part

Product Details

This is the Cusco Type RS 1 Way Limited Slip Differential (LSD) specifically for the 9/89-9/93 Mazda MX-5 Miata, chassis code NA6CE. If you're looking to improve your Miata's traction and handling, especially during cornering and acceleration out of turns, an LSD is a significant upgrade over the factory open differential. This unit is designed to send more power to the wheel with better grip, making your car more predictable and capable when you're pushing it.

The Type RS is a popular choice because it offers a good balance between performance and daily drivability. It's a 1-way LSD, meaning it primarily locks under acceleration. This characteristic helps to improve turn-in response and stability when you're on the throttle. The internal components are well-made, featuring Cusco's signature clutch plate design which allows for smooth engagement and disengagement. This design also helps to minimize the chatter you might experience with other types of LSDs, making it more comfortable for everyday use while still providing a noticeable performance benefit when you need it. Installation will involve removing the rear differential and replacing the factory unit with this Cusco LSD, which typically requires specialized tools and knowledge of drivetrain components.

When installing this LSD, it's important to follow the manufacturer's break-in procedure carefully. This usually involves a period of gentle driving and specific oil changes to properly seat the clutch plates. Using the correct differential fluid is also crucial for longevity and performance. This LSD is a substantial upgrade for any NA Miata owner looking to enhance their driving experience, whether for track days, autocross, or spirited canyon runs.