I'll defer to those with more experience on the axle wear although I don't understand how it happens since the king pin shouldn't rotate with the wedged pin in place. It was suggested to me that new bushings would probably fall thru the spindles because wear in those eventually effects the spindle bores as well. That was true with mine. The local shops did not have a hone long enough to rebore both sides of the spindle at the same time and told me they couldn't guarantee absolute alignment. I sent my spindles to Sid's Axles who did have the proper equipment to hone them for the oversize bushings. Everything went back together like new.
