Originally Posted by black05tj
...Also, any rubs that occur, would it be mainly due to the width of the tire or the height of the tire?
With 31 x 9.50 tires, rubbing would be due to the tire height. 9.50 wide tires are available as a factory option on the TJ, so they fit absolutely fine in that respect.
With 31 x 10.50 tires, they'll rub due to both the height and width. The width problem can be easily solved by adding a few washers under the steering stops. This will have a minimal impact on the turning radius.
ANd I'm assuming you'll disconnect your front swaybar. If you leave it connected, 31" tires will not rub.