RockJock Rear Coil Springs

Create a dazzling performance with the RockJock coil springs that are designed to work with Johnny Joint suspension systems. These particular heavy-duty coil springs provide a 4" rear suspension lift for standard load applications. For heavier load applications, we offer an increased spring rate for the extra height boost. This pair of rear coil springs is a dual-rate with a combined spring rate of 79 pounds and a free length of 17.75". These heavy-duty coil springs are made of high-quality material for maximum durability with improved ride characteristics.