7My replacement TRDP came with these kinda silly dealer-installed 20x10s, with 4.5" BS, wrapped in 33x12.5 Mud Claws. They had already removed the mud flaps.
After a significant amount of trimming up front, I was actually able to glean about 1 to even 1.5" of space between the front of the tire and the front bumper, at full lock.
During regular driving, it still rubbed lightlt on the body mount, though I think there might have been room to increase caster to move the wheel forward another half inch, which would have allowed casual daily driving with little to no rubbing.
But, after about a week we just bought a set of 17x8s and 285s, and sold the 20s at a quick profit.
Some factors that I think could have made it work for street use:
1) Slightly less width, obviously.
2) 4.75 or even 5" of BS.
3) Less aggressive tires (more rounded profile or a narrower section width like 285s or even 295s).
4) Setting for maximum caster and accepting minimal camber.
Of course YMMV, and going offroad you will likely still rub. At full lock and with one wheel off the ground, my 285 ATs on the 17x8s with 4"of BS have less than a half inch between the back of the wheel and the body mount area.
Also, of course, the more mods you are willing to do, the more you can get away with. 34s or even 35s can be done with chopped mounts, severe bumper trimming, and aftermarket UCAs.