Ok so I ripped down the entire motor to put the 4th gear drum in and TB 134 kit. It runs awesome now but when I shift down it kinda gets stuck if u hit the shift lever all the way down it dosn't come back up, I mean sometimes it works fine then other times it gets stuck and I have to click up a lil so it will be free. Anyone know what can I do to fix this I don't want to rip down the complete engine again?