Superior Shift Kit TH400

Superior Shift Kit for TH400 The Superior TH400 valve body kit provides a comprehensive solution for both regular and heavy-duty applications, addressing common performance issues and improving durability. Features: Includes metal rings for the 2nd accumulator, designed to replace ineffective Teflon rings used in certain model years Comes with a thicker, heavy-duty snap ring for the intermediate clutch, preventing the stock ring from failing and breaking case lugs Engineered snap ring allows cases with 2-3 broken lugs to be reused safely Corrects/Prevents/Reduces: Soft late shifts Soft 2-3 shifts Harsh reverse engagement Clutch chatter Bind-up in manual low when hot Transmissions: TH400 (M40,3L80) 1969-UP Vehicle CHEVROLET Camaro 1967-1974 3 SP Chevelle 1967-1975 3 SP CK Blazer 1978-1979 3 SP Corvette 1968-1977 3 SP Nova 1968-1970 3 SP Suburban 2500 1987-1990 3 SP Truck (C/K series) 1966-1990 3 SP Van (full size) 1975-1990 3 SP GMC Jimmy 1978-1979 3 SP Suburban 2500 1987-1990 3 SP Truck (C/K series) 1966-1990 3 SP Van 1975-1988 3 SP JEEP CJ7 1976-1979 3 SP Pickup 1970-1979 3 SP Wagoneer 1965-1979 3 SP Alternate Words: Automatic Transmission, Reprogramming, Improvement , Correction, Shift , Valve Body Rebuild Kit