I thought the same, but i have talked to 2 people who just "threw" it in low mileage diffs using the old bearings. The guys at drift factory told be that is the bearings are in good condition and reused the alingment specs should not change? All i have to do is swap the half shafts and the ring over to the new diff. What do you guys think? Really ghetto rigged or ok but not perfect. Anyone got a link to a site showing where/why you use the dial indicator? :?: