Hi Dave; Unless yours is different than mine the bearing rides on the axle. My axel was pitted and the splines shot. I looked all over the US no one would make me new ones. I finally found a set with good splines but still had pits on the bearing surface. I spaced my bearings out 1/2 inch and so far has worked. I have pictures in photobucket. My next plan was to have the axle ground down and press fit a hardened sleeve.