70' Dart vent window housing removal

A-frame. One bolt and one nut (an adjuster) on the front. One phillips screw or Allen through that little hole. One nut at the bottom of channel (also an adjustment). Window glass is held to A-frame by two plastic pins in the glass, sounds like yours are broken. You may need to remove top door glass stop, regulator, rear door glass channel. When you get it all removed you can lay it all out and see what is needed. Good luck.