brianbgboy
+1y
when they are factory, the rearend is way lower than the transmission, which is the correct pinion angle. when using a flip kit, the driveshaft becomes level from the trans. to the rearend. when you shim up the carrier bearing, and the rear of the trans. you get it closer to the stock pinion angle. the belltech kits usually come with the trans. and carrier spacer. the djm does not. hope this helps