To fix an error written above a 265/75 is the same width as a 265/70, it is just taller. A 265/70/16 in a perfect world is 30.61" tall and a 265/75/16 is 31.65" and that difference will change the gearing and slow the speedo by 3.3% slow, and that height is what is making some people rub. You apparently can also go with a 275/70/16 at 31.16" tall or 1.65% off, but they are not as plentiful as the 265/75.
Now these are perfect world numbers, and all tires can very as to where they measure from, and type of construction. That is why some brand tires look wider than others in the same size. Look in tire rack and you can see just how much these tires can vary in diameter, tread depth, and weight.
I think I may try the Nitto Terra Graplers or Toyo Open Country. These seem well priced for what you get. I really want the look of a mudder, but the weight of the tires at 10+ pounds each of unsprung weight along with the fear of Mileage and sound degradation.