This is a comprehensive kit for servicing the rear wheel bearings on 1963-1982 Chevrolet Corvettes (C2 and C3 generations). It includes pretty much everything you'll need: inner and outer wheel bearings with their races, inner and outer seals, bearing spacers, and a set of 18 shims to get the bearing pre-load just right. But the real bonus is the three specialized tools: a spindle knock-out tool to remove the old spindle, a set-up tool to help you measure and select the correct shim thickness, and an installation tool to make pressing everything back together much easier. If you're rebuilding the rear hubs on your classic Corvette, having these tools can save you a ton of time and hassle compared to trying to improvise. The parts are made to fit these specific models. It's a must-have for any serious Corvette restoration or maintenance project. The quality seems good, and it's a complete solution in one box. Makes a tough job a lot more manageable for the home mechanic or professional shop.