Response from usa1industries: You are correct, the reasoning behind it is there are now 3 manufactures of the door shells for these trucks. Unfortunately they have not been very consistent in there placement of the holes in the frame of the door so the vent window manufacturer quit putting the holes in the vent window frame brackets because it was causing a fitment issue. We know its not ideal but its better than having to modify a door shell after paint work.
So I had to prefit, drill, and then final fit
DJ Baar
