Please watch this BMW diff noise video, is the noise problem like yours ?
Uprated BMW M3 diff kit uses all taper roller bearings, with this BMW M3 series E90 E93 E92 rear differential noise rebuild kit, you can eliminate the weaker ball roller and return your diff to heavy duty tapers like the old school M3's.
This M3 taper roller diff Master Kit includes:
1 x Taper roller Pinion head bearing (no bush required)
1 x Taper roller Pinion tail bearing
1 x Pinion preload spacer
2 x Taper roller Differential carrier side bearings
2 x Driveshaft oil seals
1 x Pinion oil seal.
This kit will not fit all types of M3 series. Only M3 with ball roller bearings on the pinion.
FOR PROFESSIONAL FITTING ONLY
Please email your VIN numbers from your E90 E92 E93 BMW M3 series we can see if it will fit.