Performance LSD clutch plate set for BMW M3, M5, M6 and Z4M – RacingDiffs upgrade kit including friction and steel plates.

RacingDiffs performance LSD clutch pack for BMW M cars, complete plate set laid out with branded packaging.

Close-up view of RacingDiffs LSD clutch plate mounted on the sun gear for BMW M differential rebuild.

RacingDiffs ad showing E46 M3 free play shim, LSD clutch pack, and bearing set with 10% bundle discount.

RacingDiffs combo pack for BMW E46 M3 and CSL models with LSD clutch pack, free play shim, and bearing kit shown with discount.

RacingDiffs promotional bundle for BMW E9X M3, E60 M5, E63/E64 M6 and Z4M including LSD clutch pack, free play shim and bearings.

BMW M3, M5, M6, Z4M LSD Clutch pack + Free play delete

Name: BMW M3, M5, M6, Z4M LSD Clutch pack + Free play delete
Brand: RacingDiffs
SKU: RD4021
Price: 396.0 EUR
Availability: InStock

RD4021

.price-ui--loading { display: block !important; opacity: 1 !important; }

440,00€ - 729,00€396,00€ - 656,00€

Choose your car

E46 M3 ('00 - '05) sold out

E46 M3 ('05 - '06) sold out

E92 M3

E60 M5

E63 M6

Z4 M

Choose your kit

Basic pack sold out

Advanced pack sold out

Qty

RacingDiffs LSD Clutch Pack

Upgrade for BMW M3, M5, M6 & Z4M (M Clunk Fix)

Looking to enhance your BMW’s traction, eliminate the infamous M Clunk, and improve handling on track or spirited road drives? The RacingDiffs Clutch Pack LSD Rebuild Kit is the proven solution for restoring and upgrading OEM Motorsport limited-slip differentials.

This rebuild kit directly replaces the stock clutch plates — with no modifications required — while delivering noticeably improved locking performance and long-term durability.

Features

Direct OEM Replacement: Installs in place of the factory clutches with no machining, no grinding, and no special modifications.
M-Clunk Elimination: Upgraded friction discs restore proper internal tension and significantly reduce or eliminate the common “clunk” noise during gear transitions.
Enhanced Locking Performance: Provides higher and more stable lock than worn OEM clutches — ideal for spirited and track driving.
Protects Your Viscous Coupler: Reduces stress and prevents premature failure by offering consistent LSD performance under load.
Premium Molybdenum-Ceramic Coating: Motorsport-grade friction layer designed for heat resistance, smooth engagement, and long lifespan.
Complete Video Support: Step-by-step installation tutorials available in the RacingDiffs Video Gallery.

Performance Benefits

Completely resolves M Clunk, tapping, and free-play noises.
Provides smoother and more consistent LSD lock engagement.
Improves stability and rear-end control during cornering and acceleration.
Extends the lifespan of the differential assembly.
Perfect upgrade for track-day and high-performance driving.

Advanced Pack Option

The Advanced Pack includes everything from the Basic Clutch Kit PLUS the complete Bearing & Oil Seal Replacement Set.

Save 10% when purchased as a bundle.
Prevents differential whine, bearing wear, and leaks.
Ideal for restoring a high-mileage or track-driven differential.

Fixing the Free Play / Tap Issue

Most BMW M3 Motorsport LSDs suffer from right-side drive shaft free play, causing a “tap” or “click” when selecting 1st gear. The RacingDiffs FREE PLAY DELETE SHIM provides a permanent solution and eliminates oil leakage on the right side of the differential.

Fitment

Compatible with BMW Motorsport clutch-type LSD units found in: