High-strength tapered and ball bearings with RacingDiffs seals – Motorsport LSD rebuild kit for BMW

Reinforced bearing and seal kit for BMW Motorsport LSD – built for high-performance applications.

BMW Motorsport Differential bearing set

Name: BMW Motorsport Differential bearing set
Brand: RacingDiffs
SKU: RD2003
Price: 278.0 EUR
Availability: InStock

RD2003

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309,00€ - 411,00€278,00€ - 370,00€

Option

Variant 1 (V1) sold out

Variant 2 (V2) sold out

Qty

BMW M Differential Bearing Replacement Kit — Identify & Resolve Bearing Noise

If you’re hearing a characteristic whine during acceleration or engine braking, it may be time to replace your differential bearings. The RacingDiffs BMW M Differential Bearing Replacement Kit helps you diagnose and fix the issue for smooth, quiet performance.

Features

Comprehensive repair kit: Includes all core bearings, seals, and setup parts to restore differential smoothness.
BMW M coverage: Fits popular M models across V1 and V2 variants (see Fitment).
Quality you can trust: Components built to OEM standards for fit, durability, and long service life.
Bundle & save: Claim 10% OFF when purchased together with clutch plates.

Performance Benefits

Eliminates differential whine on acceleration and engine braking.
Restores smooth, quiet operation and consistent power delivery.
Prevents leaks and contamination with fresh seals and O-rings.
Extends differential lifespan by addressing the root-cause wear points.
Saves money versus full differential replacement—precise, targeted fix.

Technical Specs / Installation Tips

How to identify broken bearings	Listen for noise during accel/coast. During a safe drive, steer left-right: if the noise changes, suspect a wheel bearing; if it stays constant, differential bearings are likely at fault.
Kit includes	1× Small pinion bearing 1× Large pinion bearing 2× Side bearings 1× Pinion oil seal 2× Side oil seals 1× Crush sleeve 2× Side-cap O-ring seals
Installation note	Professional installation recommended to ensure correct press-fit, preload, and seal seating for maximum longevity.
Setup guidance	After pressing bearings, set pinion preload and verify backlash/contact pattern per BMW specs to prevent future noise or wear.