GM Turbo Hydromatic 350 Transmission Superior Shift Correction Kit with the Separator Plate! This Shift Correction Kit from Superior will improve Regular, Heavy Duty, Trailer Towing and Taxi transmissions from 1969-79 for the GM Turbo Hydromatic 350 transmission. This Shift Correction Kit helps eliminate the following problems: Erratic passing gear shifts, premature clutch failure, premature band failure, erratic shift points, weak shifts and improves overall performance. This Shift Correction Kit will come with installation directions in English, illustrations and the drill bits that the installation will require for heavy duty applications. We also offer a High Performance version of this Superior Shift Correction Kit (without the plate) for street rods and racing applications only. Please see my other listings!