19 We have all kinds of convenient tools for packing wheel bearings, but here's the real deal according to Ron Peter. Bearings should be washed in petroleum-based solvent and allowed to dry. Then, don some gloves and pack these puppies by hand, as shown. Massage these bearings until they're buried in high-temperature wheel-bearing grease. Coat the races with grease, but not the spindles. Bearings should sit on spindles with mounting surfaces dry.