BMW Differential C Clip (snap ring) Precision Adjustment Kit (Post-1999 Models) Installing a new Limited Slip Differential (LSD) or changing the gear ratio on your post-1999 BMW? Proper backlash and carrier preload adjustments are paramount for optimal performance and longevity. Racing Diffs' precision adjustment kit is your solution. Features: Precision Adjustment: The kit contains 10 C clips, ranging from 3 mm to 4 mm in thickness, each incremented by 0.1 mm. This granularity surpasses the precision of most other kits available in the market. Unmatched Precision: Say goodbye to differential noises. Our C clips ensure precise adjustments, significantly reducing the chances of whining or other noises that can arise from an improperly adjusted diff, particularly when introducing an aftermarket LSD carrier unit. Broad Compatibility: Specifically designed for BMW non-M models post-1999, including E46, E9X, E8X, E39, E60, and more. Hassle-Free Fitment Verification: Not sure about your differential's size? Don't worry. Send us your VIN, and our team will verify the correct fitment for you. Make sure your BMW runs smoothly and quietly. Trust in Racing Diffs for precision and quality.