Thats a panel retainer. You can get them at just about any parts store. Just pull one of the old out to take with you to compare cause they dont have those listed in computer as model specific. You might not be able to match one up perfectly, but you should be able to get one close enoygh to work.
Sounds good! One of them broke off of my plastic bed liner last summer and I'm getting a replacement for my drivers side gfx to run dual exhaust. I was going to pull the stock piece off to measure/drill holes for then new piece but I didn't want to do that until I have some of these guys to replace the one there now.
Dropping the new pice off for paint Monday and going to get my exhaust done on the 30th or the 1st. Defiantly going to post pics and maybe a vid if the weather isn't too bad.
Just picked some up at autozone. I eyeballed it, plus it said on it "for chrysler". It was the only one that was the correct size head and length. THink it was $3.90 for a pack of 10 or something like that. It's more then ill ever use in the life of the truck