How big can I go without a lift? Thinking about leveling the front though.

I'm running 20x9.5 KMC's on 305-55-20 Mickey Thompson ATZ 4 ribs with different keys. The ride went to shit I would look at the Cognito leveling kit and you'll have to trim the lower airdam just a lil. I've also ran into a slight tire rub at full steering lock occasionally when the suspension gets in a bind.

I've got H2's on 315/70/17's on mine now with just the tbars cranked a little to get it sitting level. With just a little trimming to the plastic you can fit these. I still rub just a little at full lock but all I have to do is pull back the inner fender and that will be fixed.