Im looking to get a tire and wheel package for my VX........ Im looking at the Super Swamper radial SSR...I want the big aggressive look. Can any of you recommend what size is the largest I can get, without a lift? Also, I want to go to an 18 " rim...question is....I need numbers... like backspace/offsets. What would you all recommend? looking at Helo rims. Honestly looking for exact sizes, so I can go ahead and place my order. Im so confused. lol