I'm told that the biggest difference between a 1/2 ton and a 3/4 ton is in the drive-train, bearings, axles, brakes, and suspensions. All much heavier duty in the 3/4 ton. The Tundra is almost a "hybrid"; something between 1/2 ton and 3/4 ton.
I drove one a couple of years ago on an off-road test track at a NASCAR race, and I was really impressed with the power, handling, and the general fit and finish of the truck, both inside and out.
My question, though, is in more like a traditional 1/2 or 3/4 ton when you look at the drive-train, bearings, axles, brakes, and suspensions?
2014 RAM 2500 Laramie 4x4 Quad Cab w/Cummins Turbo Diesel, 2009 Rockwood 2607, and 3 'yaks!
300W of Suntech Solar, a Rogue MPT-3024 Controller, and a Xantrex PW2000 Inverter