I want to replace the rear axle bearings in my TJ 4.0l, it was built in 97, first registered in the UK in 2000, it has a Dana 44, Ive watched a few video's and they show the bearing's either on the shafts itself or in the end of the axle casing, is this just way they come out or do some fit directly to the axle itself and some to the shafts ? Is there any way of telling which I have before I strip it ?