RacingDiffs Precision Shim Kit – Backlash Adjustment for BMW Differentials

Achieve precise backlash adjustment when upgrading or servicing your BMW differential. The RacingDiffs Precision Shim Kit is engineered for enthusiasts installing limited-slip differentials or changing gear ratios, where exact tolerances are essential for longevity and optimal performance.

• Application: Designed for BMW differentials with 168mm, 188mm, and 210mm ring gear sizes. Compatible with BMW E21, E28, E30, E36, E34, E32, E31, and Z3 models.
• Contents: 10 shims, thicknesses from 1.0mm to 2.0mm in 0.1mm increments.
• Function: Enables fine-tuning of differential backlash, essential for proper gear mesh, noise reduction, and preventing premature crown gear wear.
• OEM Cross Reference:
  • 168mm: 33139065731, 33139065732, 33139065733
  • 188mm: 33139065734, 33139065735
  • 210mm: 33139065736, 33139065737

If you demand precise differential setup for your BMW, this kit provides the exact shims required for optimal performance and reliability.