Answer
You can get 31x9.50 (or a 245/70) without a problem.31x10.50 (or a 255/70) will rub on , tight turns with factory wheels.32x10 or 32x11 will do the same, but be more pronounced and it will depend more on the wheels (whether stock or a bit wider).anything bigger will rub in multiple places.watch you wheel offsets - stay as close to the factory wheel backspacing as possible to avoid abnormal wheel bearing wear.