I have a 2010 Tundra; 2WD, 5.7l Crew Cab, ~90K miles. Mine has a flat bed (very rare to see in this part of the world; I have only seen one other) and full TRD suspension with in-cab adjustable air leveling, and is set up to handle gooseneck as well as BP.
I bought it like this, the only thing I have added is the TRD suspension; got that cheap from a young man who put a huge lift in his brand-new truck. On that note, I will comment that the majority of Tundras I see around here are "dress-up" off-road look-a-likes; I'm sure most of them never go wheelin', they are far too pretty to risk scratching the paint or getting mud up in the wheel wells :-P
Mine works for a living, and handles my BP flatbed car hauler, or the 2-place horse trailer effortlessly, and a GN 3-place -w- LQ trailer w/o undue effort, tho you can definitely tell it's back there. I haul hay and what-not on the flat bed; standard load is 24 2-string bales (1200 - 1500lb). I could probably stack another layer on, but 24 bales fits just right.
And I bought it cheap. Cheap-cheap; you'd cry if I told you how little. I bought it with issues; random check-engine light, and it would sometimes go into limp mode. But it was running great when I test-drove it, and I'm a pretty good mechanic; "How much trouble can it be?"
That was naive on my part; It is an e-truck, and CEL's can mean a lot of very expensive trouble if you have to take it to somewhere for a fix. However I'm stubborn (why George and I get along so well :-), and have managed to sort most of the problems, the remaining ones being related to the evaporative emissions system, and so relatively unimportant to the overall scheme of things. I have come to the conclusion that they are being caused by the flat-bed install, as the installer had to rework the filler neck, and the venting isn't quite right. I just reset the CELs when they come on; maybe some day I'll look into them, but it's low on my to-do list.
It is a comfortable truck, and has handled every task I have put it to gracefully. It's reasonably economical to operate, and fairly thrilling if you tromp on the go-pedal. About my only gripe is that visibility from the drivers seat is not real good, the the huge rear-view mirrors exacerbate this problem. It's a handful in a parking lot, and I just can't imagine doing any serious off-road in one, 'cause ya gotta be able to see it before you can drive over it.
Overall I like the truck, but if I'd have known what I was getting into before bringing it home, I would have bought a mid-'90s F-250 with the big 460 engine and primitive ECU instead. I feel far more confident of being able to keep an older Ford on the road than the new-fangled Toyota machine.
And I would have looked for one with a flat-bed; I really prefer a flat-bed on a working truck. "Really."
Steve Jernigan KG0MB
University of Colorado