Replace dust-cover, replace axle, replace wheels, job well done. A few points to note, clean out all old grease, choose your preferred grease, I opted for a Hi-Temp Lithium grease instead of marine grease, do not mix greases. Total cost, high quality bearings, $50, borrowed race-driver, grease gun $10, tube of grease $4. Grease gun and grease from wal-Mart, bearings from Auto supplier, auto supplier will also have race-driver.