What is the main benefit of installing a Limited Slip Differential (LSD) like the OS Giken Super Lock?

An LSD significantly improves traction by ensuring that both rear wheels receive torque, even during cornering or acceleration. This helps prevent wheel spin and allows for more stable and powerful acceleration out of turns compared to an open differential.

What type of fluid should I use with the OS Giken Super Lock LSD?

Limited Slip Differentials typically require specialized gear oil that is compatible with their clutch-based operation. It is recommended to consult the OS Giken installation manual or contact their support for the specific fluid type and viscosity recommended for this Super Lock LSD model.

Does this differential come with all the necessary hardware for installation?

This product is the differential unit itself. While it is designed as a direct replacement, it's advisable to check the manufacturer's included parts list or consult with a professional installer to confirm if any additional hardware, seals, or gaskets are needed for a complete installation.

Specifications

Brand: OS Giken
Part #: BM143-HA

OS Giken BMW E36 318is (MT/AT) / 318i/320i (AT Only) Super Lock LSD

Name: OS Giken BMW E36 318is (MT/AT) / 318i/320i (AT Only) Super Lock LSD
Brand: OS Giken
SKU: os-giken-os-giken-bmw-e36-318is-mt-at-318i-320i-at-only-super-lock-lsd-t14-4331984
Price: 1666.56 USD
Availability: BackOrder

$1666.56

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Fits 1991-1995 BMW 318i/318is. OS Giken Super Lock LSD for improved traction and handling.

Key Features

Fits 1991-1995 BMW 318i and 1991-1995 BMW 318is (MT/AT). Also fits 1991-1995 BMW 320i (AT Only).
OS Giken Super Lock LSD design improves traction by distributing power to both rear wheels.
Features a multi-plate clutch system for precise control over lock-up.
Well-built internal components are designed for performance driving demands.
Offers a more engaging and predictable driving experience, especially during cornering.
A direct replacement for the factory differential.

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About this part

Product Details

If you're looking to get the most out of your 1991-1995 BMW 318i or 318is, especially when pushing it on the track or during spirited driving, upgrading your differential is a key step. This OS Giken Super Lock Limited Slip Differential (LSD) is designed to significantly improve traction and handling by distributing power more evenly between the rear wheels. Unlike an open differential, which sends power to the wheel with the least resistance, an LSD ensures both wheels receive torque, helping you accelerate out of corners with more grip and stability.

The Super Lock LSD from OS Giken is known for its advanced design, featuring a unique multi-plate clutch system that allows for precise control over lock-up. This means you can tune the differential's behavior to suit your driving style and conditions, offering a more engaging and predictable experience. The internal components are well-built from strong materials, designed to handle the increased demands of performance driving. Installation involves replacing your stock differential, and while it's a more involved job, the benefits in terms of traction and control are substantial for drivers who want to maximize their E36's potential.

This differential is a direct fit for the 1991-1995 BMW 318i (all transmissions) and 318is (manual or automatic transmissions). For the 320i, it fits automatic transmission models only. When considering an LSD upgrade, it's important to ensure you have the correct fluid for its operation, as specialized gear oil is typically required. This OS Giken unit is a popular choice for BMW enthusiasts looking for a robust and tunable differential solution.