Looking at a 2008 Chevy Silverado 2500 HD - advice?

Thanks jared. I'm in KY so no emissions checks or anything like that. I think the tank in my F-150 is around 24 or so if I remember right so I would be used to that. What's the benefit of the larger tank, just fewer fuel stops or is it nice to fill up on diesel when you find a good price? Towing a 31'TH at 11 mpg sounds pretty good. I drop down below 9 towing my little lightweight 23' TT.