I spent many hours researching this same thing.
I'm runnin 265/75/16s on my 2.7l and full stock suspension.
I have NO problems with rubbing and I just got done wheeling hard at Paragon 2 weeks ago.
Power loss is minimal with a manual tranny.


02 Tacoma Xcb 4x4, runnin 32"s, 2.5" Daystar spacers, 1.5" Downey HD shackles, AOR sliders, SkidRow Tcase skid, 20# CO2 setup