When I installed the shift kit the trans was out of the car making some things easier and somethings harder. When I replaced the spring with the sleeve for the manual control valve there is no longer pressure on the pin that holds the valve in place. It fell out.... Replaced the pin with a piece of nail. ALL BETTER!!! I have all gears when I downshift and engine braking again also shift point for 1-2 shift is much better not to soon now. Hopefully this will help anyone else having similar problems.