Well following the purchase of the BB4 the ATR is now off the road and being stripped down my plan was to use these hubs instead of 5th gen hubs. I'm going on the assumption that the fronts should be a case of new bearing and hub should fit as the shafts are only a couple mm difference and I'll be using lude shafts anyway also the splines are the same.
Now had a play and the rear BB1 hubs it the ATR no problem however the ATR rears are a few mm bigger. Now my question is are the 5th gen rear hubs the same depth at the 4th gens?

