I didn't talk much about tires in my other post. When I changed out from the stock 265's I had the shop (I've used Discount Tires for several years now) test fit a Duratrac 285x70x17, but I found they rubbed at the back/inner portion of the wheel well at full turn. We fit the BFG KO2s in a 275x70x17 and found they had plenty of room with the 4R in stock form. At the time I was unable to try the BFG's in the 285 as they did not have any in stock. I went with the 275s. I just had them rotated and balanced, and I talked with their guys about the larger tires. They have tried to fit the same size BFG and Duratrac, but found the Duratrac would have rubbing issues. I'm assuming its because the Duratrac is closer to the Mud Terrain style.
I had the Duratracs on my Tacoma - putting about 45K on them before I sold the truck - and I've had the Open Country AT II sold by Les Schwab, as well as, the original BFG AT. I found the Duratracs were better in snow, mud and sand, but I thought they had a little "flex" in them - although not as bad as a true mud terrain - and slightly higher road noise than a typical AT. There was a significant tread "bite" in the sidewall - rivaling some of the pure mud terrains. I rotated and balanced them every 3K - 5K, and they had plenty of life left in them when I sold the Tacoma. The original BFG and Open Country were very similar in ride quality, gas mileage, and offroad performance. The original BFG seemed to wear faster than the Open Country counterpart.
The new BFG KO2 seems to be going in the right direction. They have added some sidewall "bite" that was not there in the original version. The outer blocks are spaced farther apart, and, again, seem to have made their grip in the rough stuff better. The gas mileage was affected by about 2mpg going from stock to the KO2. Just a slightly "rougher" ride, but not anything I, nor any passengers, ever complained about.
Once I lift my 4runner, and I've installed the rear bumper with the tire carrier I'm going to look at the 285s again. Although I have only good things to say about the KO2, I still am drawn to the Duratracs as they performed better in those conditions I mentioned earlier. On my Tacoma I did the body mount chop to fit the ones I had on there. Although I did not have any problems with it I will not do it again to fit tires. I do not have anything bad to say to anyone who will decide to do it, but this is just my opinion/decision.
I've also found this website to be of some help when I was looking at different size tires
https://tiresize.com/comparison/