STAGE 3 EXTREME - Run Rear  Axles in your Front X3 Smartlock Diff
 
Pinion Saver with Third Bearing
600% More Pinion Support
BIlet Side Covers - Tapered Roller Bearings
Adjustable Backlash + Bearing Preload (Shims included)
GEN II (Narrower Spool) suits 2018 and later X3
EXTREME SPOOL REQUIRES OEM RING GEAR BORE TO BE MACHINED LARGER
 
Allow 3-5 Business Days for Assembly/Export Preparation
 
Please Note:
 
Custom Colors are available if we have raw (Un-anodized) componnets in stock. (Please do not order a special color without contacting us first - it could be 2-3 months between CNC production runs)