Hey guys! Forgive me if this is an easy answer but I've searched and can't find anything. My new-to-me 1978 D150 single cab's driver's side manual window doesn't roll all the way down to where it would be flush with the door frame. It rolls up and down fine, but stops with about 1/2-1" of window sticking up from the door. This is really annoying, as I like to drive with my arm resting on the window sill, and can't really do that with it sticking up. Anybody have a video or good explanation of how to fix? The passenger's side rolls all the way down flush.