I have a Titan on 35's and it does pretty good. I don't have the big tow gears so I'm rolling 3.73 on 35's most hills I'm dogging. But it makes, pulling in 3rd and I can still get going. But it sure eats gas... 10 average. Towing and my DD. But I do enjoying driving. In the price range that I'm in, I'd only trade it for a 09+ 1500 4x4 CC Dodge.
(oh yeah I'm not a fan of diesel at all.)
Sent while day dreaming...