OS Giken Porsche 944 2.5/2.7/3.0L (MT Only) Super Lock LSD

The OS Giken Super Lock Limited Slip Differential (LSD) for your 1983-1991 Porsche 944 is built with a unique 2-way locking mechanism that engages both on acceleration and deceleration. This advanced design helps put power down more effectively, especially when exiting corners or in low-traction situations, by controlling wheel spin on both the power and coast sides. It's a well-built unit designed to handle the demands of spirited driving and track use, offering a significant improvement over a factory open differential.

This Super Lock LSD features OS Giken's proprietary clutch pack design, utilizing 28 friction discs for a very smooth engagement and a wide range of locking force adjustment. The internal components are precision-machined from high-strength materials to ensure durability and consistent performance under stress. The 2-way action means that as soon as you lift off the throttle or apply the brakes, the differential begins to lock, helping to stabilize the rear end and provide predictable handling. This is particularly beneficial for a rear-wheel-drive car like the 944, as it can reduce understeer on corner entry and improve traction on corner exit.

Installation of this differential typically involves removing the transaxle and carefully setting up the backlash and preload according to OS Giken's specifications. While it's a direct replacement for the factory differential in manual transmission 944 models, it's a job best suited for experienced mechanics or those comfortable with complex drivetrain work. The result is a more connected feel to the road and a noticeable improvement in how the car puts its power down, making it a popular choice for 944 owners looking to enhance their vehicle's performance capabilities.