STAGE 5 - BILLET DIFF (AUTO LOCKER) 
 
Run Rear Axles in your Front X3 Smartlock Diff
AUTOMATIC LOCKER (Automatically locks under load)
Eaton Detroit No Spin Locker Internals (Proven over 50 Years)
Much Larger FORGED Ring and Pinion
Tapered Roller Pinion Bearings
Billet Case + Side Cover
Internal Oil Pump
Adjustable Backlash + Bearing Preload (Shims included)
 
Requires Driveshaft to be shortened and 1310 Uni Joint Yoke to be welded to OEM driveshaft
 
If not in stock, please check the Pre Order Information