I installed the door windows in my 49 GMC last week without breaking the glass, screwed in the window channels, and put on the trim pieces. Looks great.
Then I spent the rest of the day like an idiot rolling the windows up and down.
Then, with the window half up I pushed down, and it slid clear to the bottom of the frame with the crank spinning like an electric fan. It pulls up real easy that way, too.
Is there something missing here?