Thanks . I was wondering what they were called. Fortunately i dont have the ram box. Good to know they arent running 100 a piece . Imma have to go grab a couple cans of liner and dig into it today. Ill be sure to post pics.They're held on with plastic clips which are integral to the part. My truck has the rambox, so I have no idea if you can release the clips from underneath the bed rail. If you can't you'll probably break at least a few of the clips when you remove them. The caps aren't that expensive to replace. Each piece has an MSRP of about $40. And just to help you find it, the tailgate cap is actually called the tailgate spoiler. Found that out the hard way LOL.