just a stab in the dark but did you look at the dust cover for the flywheel and was it loose?
not a bad call but it would be a long shot that that's what it is but not impossible on a new truck. oh but he said its a 05 never mindI'm thinking in the same area Blueovalboy is in, I would also check your flywheel to see if it cracked,they will crack from one bolt to next where it bolts to the crank.