Goat Rancher, I sandblasted my entire truck, frame, cab, fenders, bed and interior and I DID NOT have any problems that you mentioned. Did you ever have the same problems that you mentioned from sandblasting? This keeps coming up here and I don't think I just got lucky, just use comman sense. Get the old paint and rust off and get the hell out of there, don't linger too long at the same place. I think the problem here is TOO much preasure and TOO long at the same place if you are distorting the metal.
Go
here to see pics of my finished procuct.