How big a truck do you have. Although 1 1/2 ton and up front ends are larger to accommodate larger tires, they use the same gauge sheet metal as pickups. And of course you risk the same dangers as sand blasting a pickup. It can be done, but it takes an experienced blaster. GMC 450 and larger used heavier gauge steel. I prefer to use one of these. http://www.monti-tools.com/e_video.php The video demonstrates it pretty well. I brought the first one from Germany, but I have bought another one since from a company in New York.