Only difference between a 88 and 97 axle is the yoke splines as already stated, wheel seals, inner wheel bearings, and possibly u joint. Ford used 1330 big cap and 1350s. My 83 has 1330 big cap, my buddies 87 has 1350, but the 94 10.25 I pulled for my 83 had a 1330 big cap yoke. It was out of a...