Who's towing what with the new 6.6 gas from GM. How does it do in mountains, how much weight are you pulling, what kind of mileage towing and empty. You all have the real answers, I thank you for you...
^Youch! They don’t even offer a 4.10 behind the gasser? That’s pathetic and enough reason to not buy one for real towing if they have effectively not improved the performance of the truck IMO.