The kit includes valve body components and modifications designed to deliver short smooth shifts as well as a better TCC apply. There are several innovative components in this kit. For instance, our line-to-converter feed system which helps the unit run cooler and promotes longer TCC clutch life. Also included is a TransGo pioneered manual valve to reduce overnight forward and reverse delayed engagement complaints due to torque converter drain back. Lastly, this kit can be installed with the transmission in the truck.