I have a 2013 with a 2.5 inch lift. It has 285/70/17 tires on it, and the front tires do rub on the back of the fender well when turned about halfway if the suspension is articulated much at all. But the tires are mounted on -10mm offset wheels, so I think the offset creates more of a rub there with the tires pushed out further than factory. The other spot you might rub is the front cab mount, so lots of guys putting 33" tires on tacomas do the CMC (cab mount chop) mod that requires welding to relocate the cab mount on the frame.
Mine doesn't rub very badly or very often, so I haven't taken a sawzall to the fender well yet, but the previous owner had already done the CMC, so I don't have any feedback if I would've rubbed without that done.
Thanks —think I'll stick w/ the 275/70's, it's about 32.2" I'm currently running 265/70's w/ no rubbing lock to lock on the stock suspension.
The other size I'm looking at is 255/75R17, it's just a hair over 32" as well—slightly narrower, which doesn't bother me, but only offered in C rating in the KO2 (and not offered at all in the O3)