Hello, I understand that rear bumper mounting brackets are different from 1/2 ton to 1 ton as frame rails are closer together on the 1 ton. What I need to know is if the bumpers are different, hole locations ect, and also what about 3/4 ton? I have a GMC FC 253 and want to put a rear bumper on, haven't had any luck yet finding a 1 ton bumper but seems like there's a few 1/2 ton parts available. Please set me straight on this. Thanks
