The King Shocks 3.0-inch ID coil spring shown as 4 x 500lb is a suspension spring option specified for setups requiring a 3.0-inch inner diameter and a 500lb rate. It pairs with compatible larger-diameter shock bodies and is intended for custom rebuilds or applications needing firmer spring rates. Use it to adjust load support and ride height in matching assemblies.
King Shocks 3.0 ID Coil Springs 4 x 500lb