If you want to run 32 or 33 inch tires without having to do major modifications, then this is the kit for you. This complete system is made to handle great off road as well as ride better than stock on road. This isn't a spacer kit, but rather an engineered suspension system. When compared to your stock TJ, this kit increases droop by 4-3/4" and increases the wheel travel from the stock 7 to 10 full inches of wheel travel! The true performance of this system is attributed to the coil springs. These springs are design to handle all the abuse you can throw at them and still hold their original height. Unlike other manufactures, we didn't skimp on wire size and they are made in the USA!