SSp, I beg to differ on engine size and weight, this vehicle weights close to 7K lbs, probably about 6800. Crew Cab 4x4. It displaces 6.6L not 5.3. Don't call a bluff unless you want to see nice Black smoke on your windsheild. Tony knows what I am talking about if he reads this thread...Tony...let them keep guessing...silly rabbits, high test gas is too expensive. yet another clue in the mystery of this speed demon.