I have looked for awhile for a clean 56 GMC 1/2 ton frt bumper. I know they are different from the chevy having extra bolt holes in them. I am tempted to buy a plain aftermarket steel chevy one and drill the holes and have it chromed. Are the bumpers the exact same (GMC and Chevy)other than these holes? I have a front bumper now but the holes for the bullets aren't in the right place..maybe it's a 57-59 and they are different also?