Chevy GM THM 700-R4 4L60 4L60E 4L70E Transmission Horsepower Upgrade Kit 2-4 Band Piston Servo + 4th Gear Servo + Alto Red Wide Band Rebuild Kit 1988-On This Repair Kit Includes: Sonnax Super Hold Dual Servo 4th Gear kit Alto brand Red High Performance Wide Band 2-4 Band Servo Piston Kit Upgrade the horse power of your Turbo-Hydramatic with this awesome package. This quality power packed combo gives your transmission that "Crisp Shift" you want from your performance kits. Fits GM Turbo-Hydramatic 700R-4 4L60 4L60E 4L65E transmissions Vehicle models compatible with this part include: Chevy Camaro, Corvette, Caprice, S10 Trucks, half ton Suburbans and full size vans, C/K Truck Series. GMC Jimmy, Sonoma, other GMC V8 models and C/K truck series. Pontiac Firebird, Parisienne, Oldsmobile Custom Cruiser and 350 Diesel equipped models. Buick Roadmaster, Rainier. Cadillac Fleetwood, Brougham and Cadillac Limo. Model years using the above listed RWD transmissions starting 1982 thru 2002