So I am getting ready to order some rims and tires from Discount Tire Direct. I am going to go with either Nitto Trail Grapplers or Goodyear Duratracs in either 35/12.50/17 or 315/75/16 for my '13 JK. I like the idea of going with 315/75/16 since it will save me several hundred bucks but I am...