These axle housings have the following things done to them: new A-4222 race installed, new A-4245 seal installed, shock ball replaced if necessary, shackle bushing hole repaired with new bushing, new A-1225-SL bearing sleeve installed in end. These are sold on exchange only. We must have your old axle housing in our hands before we will ship a rebuilt one out. Please do not send us an axle housing that has been laying in the mud or outside for the last 50 years because it will not be considered rebuildable. U.S.A.