What has been said above re comparison of F250 and Tundra I agree with. We pulled a 10000 pound (scaled) 30 ft 5th wheel with a 2011 Tundra. Now pull same 5th wheel with a 2011 F250 6.2 gas with 4.30 rear axle ratio. When I test drove gas F250s I could not believe how lethargic they felt compared to Tundra. Tundra is a race horse, F250 a plough horse. Torque management is very aggressive compared to the Toyota. I am used to it now. It weights 1500 pounds more than my Tundra, gets similar mileage towing, about 3 mpg less not towing on highway and is way rougher unloaded. As someone mentioned above stability towing feel same with both trucks. We towed 5th wheel from Alberta to Arizona two winters and all over mountains of BC in summer and I have been towing for over 40 years. Only modification to Tundra was Timbrens. I would still be towing with it but wanted to be legal as I was 300 to 500 pounds over GVWR. So truck will handle a trailer that size fine if you use a good anti sway hitch. Only question is do you want to be legal.
