SK 6T70 - GM 6T70/6T75 Transmission Transgo GEN 1 Shift Kit 2007-2012 Fits General Motors 6T70/6T75 2007-2012 Contains new Pressure Regulator valve, Actuator Feed Limit valve, TCC spring and EPC relief assembly. Includes Pressure Switch repair parts to save a TEHCM with pressure switch codes. Convenient drop in valves, No special tooling or machining necessary! Pressure Switch repair parts are available separately in Kit PSR-5 Addresses Pressure Regulator valve, Actuator Feed Limit valve malfunctions which cause erratic high pressure condition that results in broken parts. Stabilizes TCC system to address TCC Slip/with codes. Improves and restores correct drivability with added durability. Installation recommendation: Experienced technician Transmission removal necessary: No