I like the Shelby snake emblem style wheel caps and would like to get some for my bullits. I saw Redfire had some spinner style Shelby caps on that sweet GT of his, I want the same kinda cap but without the spinners. Anyone know of the top of their head what Ford charges for those puppies and do you have to take the wheel off to change them or will the old ones just pop off with a flathead? Thanks for your input.