If you run factory offset you can run up to a skinny 33 with just pushing back the fender liner and getting an alignment.
The rub is storing the spare tire, which is why a lot of folks opt for the 265/70R17 which is ~31.7" depending on model of tire and manufacturer.
I absolutely love my...
Factory tire size for the GX460 is 265/60R18.
I was able to shoehorn in a 33x10.5 with no mods other than pushing back liners and removing the offensive bolt in the back of the wheel well.