Ok, my rear electric window was having problems. I replaced the side channels, motor, transmission reg, drive cable and cleaned and re-greased everything REAL good. Now the window hauls ass up, but it very slow going down. I put the old motor and transmission back in and it does the same thing. So I guess I wasted my money on those two items Anyways, I took the felts along the top of the tailgate off and the window completely out, and still the same thing, so I know its not binding that I can see. What would make it so slow on the way down? Its not hitting anywhere. Could the actual regulator be tweeked somehow (the big gears facing the center with the arms that hold the window)? But if that were the case, then it seems it would be slow up and down. Fast up, slow down, like its struggling to get down. Any ideas????