Like bounty hunter says loose the spacers, for a TJ with short arms 4" of lift is about the as high as you want to go. Also decreasing back spacing on the wheels helps some, mine has 4" lift, 35" tires 3.5" backspacing on 10" rims and an anti rock instead of the stock sway bar. It rolls a bit more than stock but rides well, Its stable at 80 to 85 mph I do tight turns getting on the freeway at 50 mph till it starts sliding a bit. I am happy with the way it drives and handles as well as the way it behaves offroad. So with a bit of work yours should do likewise