I just replaced my floor pans using 3m Panel Adhesive. It feels as solid as you would want. When the stuff dried there was a drip on the bottom that I didn't see and I cut myself like it was a knife. Went to sand it down and it sanded just like sanding metal. I got no distortion from the welder and the repair looks great. The only drawback is that the gun costs about $100 and the glue is about 45/tube. I used two tubes for both sides and I used too much but like I said it is very solid. There was a segment on Trucks! last year that showed how to do a cab corner using the stuff. I think you can watch it online on their site.