Run Rear Axles in your Front X3 Smartlock Diff
Spool or Auto Locker (Select at Checkout)
Massive FORGED Ring and Pinion
Tapered Roller Pinion Bearings
Billet Case + Side Cover
Internal Oil Pump
Adjustable Backlash + Bearing Preload (Shims included)
GEN II (Narrower Spool) suits 2018 and later X3
 
Requires Driveshaft to be shortened and 1310 Uni Joint Yoke to be welded to OEM driveshaft
 
For custom colors, please contact us directly