This comprehensive collection includes a Getrag 265/6 five-speed synchromesh gearbox, reportedly sourced from a 1981 BMW 528i, along with an M30 bell housing, resurfaced M30 flywheel, BMW 3. 64:1 differential, and a Sachs clutch kit. The components were compiled to facilitate a 5-speed conversion in E9-generation BMW coupes and E3 sedans, featuring a remanufactured driveshaft and powder-coated supports.