OS Giken SuperLock LSD, BMW E32

OS Giken SuperLock LSD for BMW E32 735i / 740i / 750i / 750iL – High-Performance Limited Slip Differential Upgrade

Enhance the performance, traction, and drivability of your BMW E32 with the OS Giken SuperLock LSD. Designed specifically for the BMW 735i, 740i, 750i, and 750iL, this precision-engineered limited slip differential offers unmatched strength and smooth, consistent locking action for both street and spirited driving.

Unlike conventional LSD units, OS Giken’s patented pressure ring system and spline-through-side-gear construction allow for up to twice as many friction plates, improving power transfer, cornering stability, and long-term durability.

Key Features:

• Patented pressure ring design delivers smooth, progressive lockup
• Spline-through-side-gear design allows more friction plates for superior control
• Low preload with 100% locking capability under aggressive driving
• All components chemically heat-treated for maximum wear resistance
• Gears are raw-forged from high-grade steel for ultimate strength
• Clutch discs machined on both sides simultaneously to reduce warping
• Billet-machined LSD case ensures tight tolerances and long service life

The OS Giken LSD replaces the factory open differential to deliver dramatic improvements in traction, cornering grip, and throttle response—without compromising comfort or noise levels. Ideal for BMW E32 enthusiasts looking to improve performance while preserving everyday drivability.

Specifications:

• Ramp Angles: 25 / 35
• Lock Timing: 336
• Total Plates: 20
• Preload: 10S

Fitment:

• BMW E32 735i Automatic with 3.45:1 215 Housing
• BMW E32 740i Automatic
• BMW E32 750i with 3.15:1 215 Housing
• BMW E32 750iL with 3.15:1 215 Housing

Installation Notes:
Refer to your OEM BMW service manual for proper installation. Professional installation is recommended.