In short my channel brackets mount at the bottom with two sheet metal screws and also mount at the top with one screw. This worked fine on my passenger side. I also mounted the bottom of the bracket with two screws on my drivers side, the problem is there is no where to put the top screw as the small inner mount is missing. I don't really want to have to undo the passenger side to see what this top bracket looks like as it was a bit of a pain to line everything up during the install this past weekend, also have no way to take pics. Thank you so much for ur response.