Hey what kind of resto you doing on the bed? I have a 63 unibody and just got and I need to do it to mine also. Mainly my rear bed corners are just about rusted out, and I cant find anyone that makes a replacement. was going to check on a place here about making me some but they are astronomically high on everything else they do. So kind of shopping around. If you have any suggestions please let me know. I will be getting into what you are too so if you find any good info on the torque box let me know, sorry I couldn't help