The Fulton I have has the type of bracket shown
here scrolling over half way down. The caption is "S Shape Flange". My body style should have had the bracket shown
here in "Step 3" and "Step 9A" where the top bracket foot is closer to the middle of the bracket. Because of the workability of the bracket aluminum we were able to form the upper foot to conform to the curve of the door frame. Just be sure to leave about a 3" gap across the back edge to allow free passage of the air.