Rail Caps
Google is your friend.
http://www.dealergoodies.com/page391.html
just search for diamond plate cap rails
http://www.dealergoodies.com/page391.html
just search for diamond plate cap rails
I suppose you are looking for you 2002. You really only have one option on the F-150 and that is Putco's Skins bedcaps. They are replacement caps where you take off the factory plastic and these go in place of them. You can get them with or without the stake holes as well. They are right pricey though usually around $225+


