Not sure I understand what you mean. Are you interested in something to protect the metal from scratching like a bed liner or do you mean a cover or cap.alohaarg said:if you have any ideas, links, products to see pls let me know.
i wanna protect my bed but i can't spend a lot
With a drop in liner you can spray the metal with a protectant then put the liner back in, that will keep the moisture from causing any ill effects.Caltitan said:Spray on liners are nice, but I think around $400. My Nissan hard plastic drop-in works well for me, and rust build-up beneath it will not be too much of a problem in So Cal. Don't use the do-it-yourself stuff unless you have a very steady hand and the patience to apply multiple coats of it.