I have a 2009 4runner with 285/70/17 BFG KM2 tires. Just got them installed last week. I have trail edition wheels from a 2012 4runner trail.
I had to take off the front mud flaps. I pushed in the front fender liner forward as much as I could. Also trimmed the lower portions of the front bumper area.
Don't rub anymore with the tires.
I also do not rub the body mount at all. I'm a good 1 inch away when the wheel is turned and closest to it. Some people do rub there and some people don't so don't take anyone word. It depends on your alignment and which tire you buy. Each brand of tire is a slightly different size.
I would advise you to take off the front mud flaps prior to getting the new tires installed. The rest you can do when you get home.
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