Ford F-250 Window Adjustment
The panel is held on by a few plastic anchors. I didn't count. If you pry them out wrong, the head of the anchor will tear out of the panel. Use a thin, steel blade with a fork. You can make a panel tool by cutting a 3/8 inch slot about 2 inches deep in a 2 or 3 inch wide putty knife. Smooth off all sharp edges. you want to pry on both sides of each anchor. I have always done it with a narrow putty knife, and I usually damage my door panels. Next time I'll take my own advice and fabricate a special panel pry tool.
After the anchors are out, tilt the panel up from the bottom, and gently remove the top where the window wiper/gasket is.