The Rubicon Express 4.5-inch coil springs have a good rate for all-around use on- and off-road. The Walker Evans Racing reservoir adjustable shocks allow 14 compression adjustments. The rebound damping is perfect for the JK and much better than generic hydraulic shocks that usually have very little rebound damping built in. Rubicon Express supplied the DOT-approved stainless brake lines. The 1.5-inch Spidertrax wheel spacers allow the Super Sahara to run factory wheels with 37-inch tires on them.