Rebuilt BMW M Variable LSD: E46 M3, E90/E92 M3, E60 M5, E63 M6, Z4 M

Experience a remarkable improvement in the performance of your BMW M3, M5, M6 and Z4 M with our fully rebuilt M Variable GKN V2 Limited Slip Differential (LSD) carrier. Enhanced with RacingDiffs’ Molybdenum-ceramic clutch pack, this LSD eliminates the notorious 'M clunk' by incorporating a Free play delete shim. Expect enhanced grip, increased differential lock, and superior durability, ensuring optimal performance both daily and on the track.

Features:

• Eliminates the common 'M clunk' issue.
• Boosts performance with more grip and increased differential lock.
• Equipped with a new Molybdenum-ceramic clutch pack for improved durability and less wear.
• Ideal for both daily drives and track use.

Fitment List:

• BMW E46 M3 (2005, 2006)
• BMW E90/E92 M3
• BMW E60 M5
• BMW E63 M6
• BMW Z4 M

Installation Note – Setting Backlash & Gear Contact

To finish the swap you’ll need the correct carrier-adjustment shims.
These shims let you:

• Dial-in factory backlash (0.08 – 0.12 mm on most BMW ring-and-pinion sets)
• Center the ring gear for a perfect gear-contact pattern
• Eliminate whine, premature wear and heat build-up

TIP: We stock complete shim/C-clip packs in 0.1 mm increments so you can fine-tune preload and backlash without hunting for OEM spacers.

Watch before you wrench: Our 8-minute installation video walks you through pressing bearings, measuring backlash with a dial indicator, selecting shims, and checking contact with marking compound.