When replacing your rear coil springs it is a very good idea to check your coil spring retainers on your 1960-72 Chevy and GMC truck that has rear coil springs. Not only are our billett aluminum retainersstronger than the originals, they offer a unique High Tech look for the Classic truck enthusiast who appreciates attention to details. Often the old originals are worn out, rusted or bent.Replacing the old units with new ones assures you that the coil spring will not move around after installed. Our retainers are designed to fit all different spring wire diameters available.