Hey guys, I am working on rebuilding my 4l60e. Not real sure all the information you guys will need but please ask away. So here is my problem. I have gotten to the point where I am installing the input drum, but once I get it fully engaged on all the clutches the output shaft becomes pretty difficult to rotate in one direction. If I go a step further and install the reverse input drum the output shaft becomes almost impossible to turn. What do you guys think I should look at? I already took apart the input drum clutches and pistons and the reverse input clutches to make sure I installed them correctly and it looks right to me, anything else you guys might recommend? Thanks for any input!