ClutchPro RE-Sleeve Kit incl. Conversion Thrust BearingClutchPro recommend replacing the clutch release bearing (also known as a thrust bearing) whenever replacing a clutch kit to ensure these critical components are replaced whilst the transmission is out of the vehicle. ClutchPro release bearings are OE quality and designed for optimal performance with the clutch kit. ClutchPro include a replacement bearing in all clutch kits where a concentric slave cylinder is not required.