Some of the people I know that run wranglers have used these in the rear to give extra stability...plus level out the rear with the front with great success. I am going to try one in a week or so when it comes in. The bags allow another 1000lbs of carrying capacity if needed to be. I got a deal on one for 40 bucks...will review it for you guys soon.

http://www.4x4xplor.com/airlift.html