True, dual-rate coil springs manufactured of Hi-tensile chrome silicone steel alloy, finished in a durable black powder coat provide a comfortable road ride with superior off road stability. The MetalCloak dual-rate springs surpass any other on the market and with the high quality of materials used, retaining proper ride height, resist sagging, and last longer under drive loads than others available.  With over  8 inches of coil compressed at ride height, the springs stay firmly mounted in the coil buckets at full articulation and eliminate the need of limiting straps on the axle to keep springs in place; this added benefit  allows the Jeep  to take full advantage of the down travel provided by the MetalCloak 6Pak shocks.