Upgrade Your Limited Slip Differential for BMW M3, M5, M6 & Z4M Looking to enhance your BMW's performance on the track? Racing Diffs has the perfect solution for you - our Clutch Pack LSD Rebuild Kit! Experience a smoother ride, improved handling, and eliminate that annoying M Clunk problem once and for all. Direct Replacement, No Modifications Needed Our Clutch Pack LSD Rebuild Kit is a hassle-free upgrade. It directly replaces stock clutches, and no modifications are required. Enjoy easy installation and get your BMW race-ready in no time. Perfect for Track Enthusiasts Are you a regular track visitor? This kit is highly recommended for all BMW drivers who love hitting the race tracks regularly. Experience enhanced lock compared to OEM clutches, saving your viscous coupler from unnecessary load and potential failure. Upgrade to the Advanced Pack Get even more value with our Advanced Pack, which includes everything from the Basic Pack PLUS a Bearing & Oil Seal Kit. Save 10% on your purchase and have all the necessary components to maximize your BMW's performance. Resolve the Infamous Free Play Issue Almost every M3 Factory LSD unit suffers from the infamous free play problem in the right drive shaft. Put an end to that annoying 'tap' sound when engaging into 1st gear and prevent oil leaks on the right side of the differential. Our Racing Diffs FREE PLAY DELETE SHIM is the permanent fix you need.  One Year Warranty We stand behind the quality of our product. Enjoy peace of mind with our one-year warranty, ensuring your Racing Diffs Clutch Pack LSD Rebuild Kit performs flawlessly. Not Sure Which Kit is Right for Your Car? Don't worry, we've got you covered. Just send us your VIN, and we'll verify the right set for your BMW. Customer satisfaction is our top priority! Racing Diffs Recommends Motul Gear Competition 75w 140 Oil To ensure optimal performance, we recommend pairing our kit with Motul Gear Competition 75w 140 oil. It's the perfect match for all our products, delivering superior lubrication for your differential. Take your BMW's performance to the next level with Racing Diffs Clutch Pack LSD Rebuild Kit! Say goodbye to M Clunk and hello to smoother, track-ready drives.