These are the BEST Radiator mounts we have found. They are stainless steel and come with rubber bushings installed for 3 core radiator.
12-14010 Radiator mount brackets, weld-on for Early Bronco
12-14132 Radiator Mounts for 3 core radiator, black for Early Bronco
12-14232 Radiator Mounts for 4 core radiator, SS for Early Bronco