King Shocks 3.0 ID Coil Springs 18 x 400lb

These King Shocks 3.0 ID coil springs are 18 inches long and offer a 400 lb spring rate. This specific spring rate is a common choice for vehicles where a slightly firmer ride is desired, or for applications carrying extra weight like aftermarket bumpers or camping gear. The 3.0 inch inner diameter is designed to fit King Shocks' popular 3.0 inch diameter coilover bodies.

King Shocks uses high-strength steel for their springs, which are then shot-peened to improve fatigue life and durability. This process helps the springs maintain their intended rate over time and under repeated stress. The springs are also powder-coated for corrosion resistance, ensuring they look good and perform well even in harsh environments. They are built to be a direct fit for compatible King Shocks coilovers, making installation straightforward if you're rebuilding or upgrading your suspension setup.