The King Shocks 3.0 ID coil spring features a 3.0-inch inner diameter, a 12-inch free length and a 400 lb spring rate. Designed for coilover-style shock bodies accepting a 3.0-inch ID spring, it offers a higher-rate option to increase spring stiffness and load support. Select this spring when a firmer 12-inch, 400 lb configuration is appropriate for your setup.
King Shocks 3.0 ID Coil Springs 12 x 400lb