Re: Steel Prep?
Any auto paint supply store will have a metal prep, designed just for that. I don't know what kind of acid it is, but it is an acid, so use protection. It etches the metal so the primer will have something to bite on. A fool proof way is to use the metal prep ( follow the direction ), and then use an etching or epoxy primer. Both adhere very good to bare metal, Then to get it very straight use a filling primer, and block it out. When you think you got it straight, block it again. Then again this is a Jeep, if you make it to pretty, you probably wouldn't wheel it, so etch it, epoxy or self etching primer, and paint it. Better yet, just leave it in primer.