I now have the cab on my '40 GMC stripped down with only the rear window to remove. Ive taken out the interior trim along with the trim screws around window. There is a fair amount of rusr around the window gasket and frame and the window is basicly stuck in place. I need some advice on its removal without damaging the metal trim. The window is already cracked so its loss is not terrrably important. Anyone have an idea? Geo. :confused: