OK Update- I did a thorough inspection of the vehicle and did not find a thing wrong. About a month ago I took it to my local mechanic and he inspected the front end, finding nothing wrong. So I did some more research and located the location of the sound- the back end!
So I took the truck in this week- they could hear the noise as well when they drove it down the road (noise is only when you hit a bump) but their inspection turned up nothing! Everything is mechanically sound. They cleaned the backing plates and sent me on my way.
What is my next move- drive it with the noise or call the dealer? I can’t see taking it in if its mechanically sound, but a noise that is loud enough to cause you to question the integrity of the truck whenever you hit a bump should be a cause for concern, right??