The King Shocks 3.0 ID coil spring is specified with a 3.0-inch inner diameter, a 12-inch free length and a 300 lb spring rate. Intended for coilover-style assemblies that accept a 3.0-inch ID spring, it allows swapping rates to refine handling and support. Choose this coil spring when a 12-inch length and 300 lb rate suit your suspension tuning needs.
King Shocks 3.0 ID Coil Springs 12 x 300lb