thanks Joe B. , On the thin sheet a little propane will work but .125 and up gota use some heat . I got alumna flux at the hardware store made by forney and thought I give it a shot . you just got to watch the heat on the sheet , you'll warp it just like steal . It's hard for me to explain how , since I do it by feel
. I only messed with it on some scrap , so we'll see how I do on the truck
Steve