I'd like to repair some rust holes in my 1990 F350 real soon. I've done sanding and priming many times before, as well as minor body work, but nothing like a 6" long rusthole between a passenger door and the roof

I'd rather learn to do these types of things myself, as my truck is the perfect candidate for trial and error. What I'm looking for is some tips, pointers, products, walkthroughs, links, and some experience in doing these types of things. The 6" rusthole is the most major... and there is two or three minor dime-sized spots around the cab. Thanks in advance.