Rock Krawler has “off-the-shelf” shocks, but realistically, all of them are made to order. The “off-the-shelf” ones are just shocks of a length and valving that have been pre-determined by the company. Since we had TnT Custom’s coil-conversion and long arms on our XJ, we had to provide Rock Krawler with our spring rates, lift height, and extended and collapsed shock length. Our setup was unique, but Rock Krawler nailed the valving on the first shot. We ended up with the ride we were after right out of the gate.