The GM Saginaw 3 Speed Manual Transmission Main Case 3925647 is a vintage part manufactured by General Motors in the United States. Made of durable cast iron, this manual transmission features a gear count of 3 and includes a reverse idler gear. The shift linkage type is an external rod, making it a reliable choice for Chevy vehicles from 1966 and up. Perfect for dirt track or original replacement shipping Included 48 lower states