[slorio]

I agree with LT1 Burb. I used phosphoric acid on mine until I was ready to prime. Phosphoric acid is applied with a spray bottle, scuffed with a pad and then wiped with a paper towel. Once you apply phosphoric acid, it keeps metal from rusting as long as the cab doesn't get wet. The only thing you need to decide with using phosphoric acid is what brand/type of primer you will be applying afterward. Some primers have phosphoric acid in them already. The general rule is only one application of phosphoric acid, thus if you do what I am recommending, you can't use a primer that has phosphoric acid as well. I use epoxy primer that is called Kirker Enduro that doesn't have phosphoric acid. When I am ready to prime, I scuff, clean and use a wax and grease remover, then shoot the primer.

Hope that helps.
Regards,
Steve
New Orleans