This Superior Axle brand, Master Overhaul Kit is complete and includes all the necessary hardware to professionally rebuild an axle and install a new ring and pinion set. This kit includes pinion bearings, carrier bearings, pinion nut, pinion seal, pinion shims, crush sleeve, ring gear bolts, cover gasket and gear marking compound. Superior uses only the finest components in its kits and features Timken bearings and National seals.