I know this has been beaten to death but I can't find the answer I'm looking for through searching. I have 70 rear bumper brackets and a 73 rear bumper. Does the 70 rear bumper have holes drilled in a different location for the inside most bracket bolt? My 73 has 2 square holes and it seems like the 70 bracket would fit best if there was a hole drilled in the center of those 2?