If you choose to raise your JK, at some point, you will need to upgrade the mounting components for the rear of the vehicle. This kit is exactly what you're looking for. The Synergy Manufacturing Rear Coilover Kit comes with all the required "Grade 8" hardware for the job. The tubular cross member construction is impressive, as evidenced by the 1-3/4" DOM steel and its 3/16 precision laser cut bracketry. The lower shock mount can be moved as high as is possible thanks to the bolt-on lower shock mount which can allow a shock with up to 12in of travel. Relocates the upper shock mount up and back. The mounts are designed for specific shocks - ones with 1.50" wide mounting spacers.