BMW 168mm Limited Slip Differential Rebuild Kits – For Pre-1999 4-Cylinder Models (E21, E30, E36, Z3)

Restore and enhance the performance of your classic BMW with precision-engineered rebuild kits for the 168mm small-case limited slip differential. Specifically designed for most pre-1999 4-cylinder BMW models, including E21, E30, E36, and Z3.

Available Kits:

• Service Pack:
  • 2-clutch set to restore original differential feel and function.
• Stage 1 – Track Pack:
  • 2-clutch set with RacingDiffs’ upgraded clutch plates for improved grip and durability.
  • Billet steel cap for increased strength.
  • Ramp saver shim for extended differential life.
• Stage 2 – Race Pack:
  • 4-clutch set with enhanced RacingDiffs clutch plates for more aggressive locking characteristics.
  • Pre-load shim set for precise setup.
  • Billet steel cap for superior stability.
  • Ramp saver shim for long-term reliability.
• Stage 3 – Max Performance Pack:
  • 4-clutch set with RacingDiffs’ premier clutch plates for maximum performance.
  • Ultra-durable billet steel cap.
  • Pre-load shim set for fine-tuning.
  • Multi-variation ramp set for customizable differential behavior and optimal power distribution.

For a complete differential rebuild, a Bearing & Oil Seal Set is required (not included in the above kits).

Compatible OEM Part Numbers:

• 33141203806
• 33141203803
• 33141203804
• 33141203805
• 33141204153