Replacing Body Mounts I am replacing my body mounts on my 1981 K1500 this weekend and I had a question. There are six locations where the cab mounts to the frame. The two in the middle and the two in the rear have the bolt thread up from the bottom and into the cab. Are the nuts that go to these screws attached to the cab? I do not see a way to gain top access to the nuts to hold them with a wrench. I did not want to start unscrewing before I knew what was going to happen. So, those that can answer my question, it would be great if I could get your two cents.