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Best set I ever saw was made for a toyota. They took some manual crank window doors and removed the window, then took a air grinder and cut the door down lower, then welded a new piece on top to close the hole. Then they got someone to make them some convertible type plastic windows that snapped on.
I just did this with my buddy on his bronco, you have to drill out the knurled end of the door pin with a right angle drill then knock the pins out. Cut all the wires apparently if there are any colors duplicated it doesn't matter because rich didn't have any problems using a 12 pin and a 6 pin molex connector on each door and matching colors. Then drill out the hinges to 3/8" you will have to remove the upper door side hinge to drill it straight. Use four 4.5" X 3/8" bolts and taper the bottom 3/4" so they will fit back in easily. Reinstall the door hinge by matching up the paint marks, grab a buddy and reinstall the door. The hinges didn't require any adjustment and they were remarcably tight.