I installed this on my 2008 Jeep WK. I have Rubicon Wheels with KO2. Before installation, they rubbed the stabilizer bar a little, now they rub the plastic covering the body seam a little. I recommend trying 1.5" up front for this tire/wheel combo. I should mention that I also have a 2.5 inch lift kit. On my other 2008 WK I have stock wheels and 1.5 inch spacers on the car. They rub against the front outside corner of the wheel. The lift eliminates this friction.