I'm running 5.5" backspacing with 33" tires. It's a perfect fit. 285/70r17 on 8.5" wheels. All stock and no rubbing in any situation.
The width of the tire is not the only consideration, it's the width of the wheel, the tire width and diameter.
Don't buy the hype that you need 3.5" or 4.5" backspacing in every case. When you use less backspacing you begin to rub in other areas and the tires are sticking way out beyond the fenders.
2013 Rubi 2 dr, six speed, Cherry, hardtop. Rampage recovery bumper, Zeon 10S. 19/60 springs, 255/80r17 Cooper ST Maxx.
"I only exaggerate enough to compensate for being taken with a grain of salt."