285 75 16 will rub only if u compress suspension fully while turning. 33x12.5 will fit with very minimal rub but only if u have a narrow rim width or as 96procomptahoe says u get some offset on your wheels. if u are using stock wheels, u should get 315/75/16 because they are huge (looks great) and will only rub slightly when u turn the wheels ALL the way. plus, when u lift it u won't have to buy new tires right away b/c they will still look good
305/65/16 = 33x12.50/16 and 315/75/16 = 35x12.50/17
most 305s are about 32.5" tall and most 315s are about 34.5" tall
only interco and serious mud tire company's 305s and 315s measure a full 33 and 35 inches
i would say go with 285s honestly, but 315s are sick
do u have your torsion bars cranked up a bit?