I never attempted to weld at all, never mind body panels. But, I can't afford a body shop. I knew nothing about welders, so I carefully read the Eastwood catalog, then bought their small arc welder, with the stitch welder accessory. Their sales ad claims it can weld panels as thin as 24 ga. In reading the posts here, I see that MiG welders are recommended by others. I need to weld a salvage yard left quarter panel in to replace my rusted one. I'll have to cut it out below the side rear window, both inside and out, then weld in the replacement panel, with wheel and tire wells. Will the arc welder work, or did I make a mistake? Also, any advice on how to proceed would be greatly appreciated. Flying blind.