my truck 2wd 1996 f150. I'm converting it to 4WD and the rear doors are different widths. These brackets are meant to be bolted on, adding a center hole on either side. Well, as you can see from my photos, there are only two screws lined up. I had to drill out the other four. It was the same on both sides. Otherwise I'm satisfied! That brings me closer to the heavy-duty bridges!