Transgo 400-PRO Valve Body Reprogramming Shift Kit fits GM TH400 (SK400-PRO)*

Brand: TransGo Performance Type: Shift Kit Interchange Part Number: T34171 Manufacturer Part Number: 400-PRO Country/Region of Manufacture: United States Universal Fitment: Yes Vintage Part: No Performance Part: Yes  TH400 3L80 Valve Body Shift Reprogramming Kit™ With Gear Command™ Fits all 400 1965-on  Features: Automatic shift Street or full-race Holds 1st and 2nd to any RPM Back-shifts to 2nd and 1st at any RPM Tow&Go™, competition, pro-race, heavy duty, show-off Awesome capacity with adjustable shift timing and feel Also Includes: (2) different size 1-2 shift valves Direct clutch high rate return springs Heavy duty intermediate pressure plate snap ring 3rd clutch dual feed separator plate Shift feel and calibration components 2-3 aluminum accumulator piston