If i remember correctly the inner is larger than the outer, that said you can remove/replace bearing cups with out going to the machine shop.
Clean hubs and get all the grease out of the backs of the bearing cups, you should see 2 little notches in the casting that you can see the edges of the cups. Using a long punch(longer is better) pound out the cups a little at a time on each side of the edge of the cups. When you have the cup out, grind down the outer dia. of the "old" cup (cool in water as you go they get hot!) enough so it can easily slide back into hub.
Now you have the cup driver as a tool to insert the new cups with, no need to lube new one, place old cup on top of new cup matching narrow edge to narrow edge and drive away. look on back side of hub and you will see when cup has bottomed out.
A larger chisel laid across the race being tapped helps even out the force needed to re insert new cup helping to prevent "*" of cup and saving fingers too
The money saved you already spent on the next part of the jeep to be "worked" on, unless you need to visit somebody anyways. If so kindly disregard my rambling on..............
