If you are handy and are auto savvy enough to effect repairs to your car, you can save a lot of money by performing the repairs, maintenance, and installations yourself. If you have to change a tire or wheel hub, a good set of bearings is a necessity. Square2Box makes a 19-piece bearing race and seal driver set that has adaptors, drivers, and nuts for your tires and wheel hubs. There is also a flaring tool kit by Skyhawk tools for installing the water and gasoline lines in your auto's plumbing. If you need to replace the automotive lighting control unit for your headlights, there are kits for that as well, such as those by the company Automotive Lighting. If your car is in need of a tune-up, Crown Automotive makes tune-up kits, which allow you to replace your spark plugs at the necessary intervals, as well as fuel filters, distributor caps, rotors, and PCV (= positive crankcase ventilation) valves.