A clutch is at once a fairly simple device and an incredibly complicated series of components. When it is working, everything can be running along smoothly. However, any faulty part, no matter how small, will basically stop the clutch from functioning. Oftentimes, clutch discs will last forever, and it is the other components that fail, such as the clutch release (or pilot) bearing. If you want to keep this part from wearing out in short order, you should replace it with a quality part that comes from a well known quality manufacturer such as ACT. The ACT clutch release bearing is unlikely to fail in as much time as an OEM bearing. It is a direct replacement that fits directly over the axle that holds the entire clutch assembly together. The ACT clutch release bearing basically takes the energy of the clutch fork and presses against the springs of the clutch pressure plate, which pulls the clutch away from the flywheel. A rumbling in the clutch or from your transmission could easily be a failing bearing. If you are replacing your failing bearing with an ACT clutch release bearing, consider purchasing an ACT clutch kit, which will contain a new ACT clutch disk, ACT clutch release bearing, ACT pressure plate, and ACT clutch alignment tool. Our customers understandably desire professional support when shopping for high-quality car parts from us. For our valued customers, we run a 24-hour, 7 day a week technical assistance desk to answer your calls. Everyone hates paying for shipping, so there is always totally free shipping for all orders $50 and up. If you spot a lower price elsewhere, call us - we always beat any legitimate auto part price.