Superior 18-1601 Rubber Coil Spring Booster, Small Go to amazon.com Related posts Best spacers for coil springs FeatureHelps Restore Spring TensionHelps Restore Life to Sagging Coil SpringsProvides Lift to Sagging SpringsEasy to Installincreases Spring Tension to Help Prevent Bottoming DescriptionSuperior 18-1601 Rubber Coil Spacers, 1.5" Thick, Provides Approx. 1" Lift