Tire size ordering should not be 265/65 if want to keep speedo cal. correct. The stock is 255/50-20: 255x50% x 2 divided by 25.4 + 20 = 30. inches, 265x65% x 2 divides by 25.4 + 18 = 31.5. Your speedo will be slow by 5%. Not a lot but ,255/60-18 would be the same.