A flywheel is basically a weight that is mounted on a spinning system that is designed to maintain momentum and to damp out any vibrations on a shaft. In a transmission, the flywheel performs this function, as well as serving as the connection point of the engine to the transmission. The flywheel forms a pressure coupling with your clutch disc. The pressure plate keeps the clutch disc firmly mounted to the flywheel when the clutch is not engaged. The only time either the clutch disc or the flywheel can wear is when they are spinning at different speeds, which should only occur when the clutch is partially engaged. Your flywheel may eventually wear out, and when it does, you should replace it with a high quality Sachs Flywheel. The Sachs Flywheel in most cases is an OEM replacement component. Sachs manufactures clutch components for over 500 automakers worldwide, so you can be certain that they make a Sachs Flywheel for your application. A worn out flywheel will allow vibration to occur in the driveline, which is not only unpleasant, but it can lead to damage as well. Whenever you replace your clutch, you should inspect your flywheel, and if it looks significantly worn, you should install a replacement Sachs Flywheel immediately, rather than having to open up your clutch system twice. Auto parts buyers desire terrific support and help when considering dependable parts for their car or truck. For all our customers, we run an always-open help bureau to assist you with your questions. To make a good deal even better, we offer totally free shipping for all orders above $50. If you spot a lower price elsewhere, tell us - we will beat any legitimate auto part price.