ACDelco GM Original Equipment Remanufactured Automatic Transmission Valve Body is the hydraulic brain, with various channels, spool, and check valves that direct hydraulic fluid to perform the needed gear changes. Remanufacturing automatic transmission valve bodies is an automotive industry practice that involves disassembly of existing units, and replacing components that are most prone to wear with new components. Damaged and obsolete parts are replaced and are end of line tested to ensure they perform to ACDelco specifications. In addition, remanufacturing returns components back into service rather than processing as scrap or simply disposing of them. This automatic transmission valve body has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.