[Ironhorse]

Have to agree with the bolt-on for '71 cabs. My '71 4x4 has a "raised" mounting pad stamped into the inside cab roof line. I have a couple of the "glue-on" windshield style, not sure if they are the correct mirror for a '72 application. The 67-70 style mounted to a arm mounted to a flat roof line if I am correct. Some one else may have more info.