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OS Giken Super Lock Limited Slip Differential | 1982-1991 Porsche 944 (PR061-HA)

OS Giken Super Lock Limited Slip Differential | 1982-1991 Porsche 944 (PR061-HA)

SKU:PR061-HA

Out of stock

Regular price $1,733.33 USD
Regular price $1,950.00 USD Sale price $1,733.33 USD
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The OS Giken Super Lock Limited Slip Differential is a high-performance drivetrain component designed for the 1982-1991 Porsche 944. Engineered with an innovative design, this LSD features the ability to house up to 28 friction plates, providing exceptional locking capability. Its patented lock timing system ensures a progressive, smooth, and quiet lockup, enhancing handling precision and driver confidence. Built for durability and consistent performance, the Super Lock LSD reduces wheel slip during aggressive cornering, leading to improved lap times and driving stability. Its advanced friction plate arrangement and engineering focus on delivering quick response and repeatable tuning, making it suitable for both street and track applications.

This limited slip differential is a direct replacement for the factory unit in compatible Porsche 944 models from 1982 to 1991. It is designed for installation in vehicles equipped with the specified chassis and drivetrain configurations, offering an upgrade for enthusiasts seeking enhanced traction and cornering performance. The Super Lock LSD is ideal for track days, spirited driving, or competitive racing, providing a reliable and smooth locking mechanism. Installation typically involves standard mechanical procedures, and the kit includes the necessary friction plates and components for a complete upgrade. Its robust construction ensures long-lasting performance under demanding driving conditions.

Overview

Super Lock Limited Slip Differential by OS Giken

The OS Super Lock LSD is the culmination of over four years of extensive research and development leading to a revolutionary LSD design. With the capacity to house an unprecedented number of friction plates (up to 28 plates in total) and combined with our patented lock timing system, the Super Lock LSD is able to achieve complete lock in a progressive, smooth, and quiet manner. This effort translates to quick lap times and repeatable tuning and performance.

Features

  • Miniaturized pressure ring and a superior spline-through-side-gear design allows for fitment of more friction plates (up to 2x as many as competitors versions), offering true 100% lock capability.
  • Patented pressure ring design allows for smooth, progressive locking.
  • LSD case has a relief cut-out for the cone spring, resulting in minimal cone spring degradation and enhanced durability.
  • All components are chemically heat treated for maximum durability
  • LSD case is machined from a single billet piece to ensure uniformity.
  • Initial torque can be adjusted by using thicker / thinner cone springs
  • Lock progression timing can be adjusted by using stiffer / weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle/driver.
  • Ramp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities.
  • TCD spec disks can be installed for increased oil cooling and even smoother operation.

Applications

  • 1982 - 1991 Porsche 944

What's In The Box?

  • 1 - Super Lock LSD

Warranty

  • Manufacturer's Warranty
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