All gears are made from heat treated steel and are finish ground for complete concentricity. The gear set includes a dual keyway crank gear, an idler gear that has the outer race ground into it using a high speed roller needle bearing and a cam gear that uses a eleven hole vernier to dial in cam timing.
Gear drive includes a mounting hardware kit, thrust bearing and washers, woodruff keys, and adjustable timing pointer. The cam hub uses a massive .625" hex shaft to drive the fuel or oil pump. This gear drive is set up to be used on a .600" raised cam Energy/Callies billet aluminum BBC engine block and will not work on a Dart Iron Eagle block.
RBS can also supply pump extensions or cam covers per the customers needs when ordering the gear drive.