Canada sport bumper

[Robert Paul Thomas]

Hey guys, ran into a snag installing my rear sport bumper, I was wondering what size the bolts are that hold the brackets to the frame, I think I installed 1/2 inch, but the brackets are to high , so I am thinking if I installed 7/16, then this would allow me to adjust the hight of the bracket in relationship to the frame and the tailgate reveal. I tried to install, and the bumper would hit the gate if down in the open position, it appears to be about 1/4 to 1/2 to highThanks Rob