The product featured is a high performance Main Shaft Front Bearing Early which is used for the following gearbox types: Triumph Spitfire 1300, Dolomite 1850, GT6. This product is compatible with 3 Synchro and 4 Synchro gearbox units. The package content consists of 1x Main Shaft Front Bearing. Please note we only use high quality branded bearings ensuring that our products are high in quality and performance.