Prothane Pair of Polyurethane Coil Spring Insulators for 1965-1973 Mustangs.When you are replacing your coil springs, you may already be thinking about ride comfort. Upgrading to polyurethane coil spring insulators is a easy way to firm up your ride.
Insulators are also important to minimize the squeaking caused by the coil springs under shock load. These insulators go on top of the coil springs between the spring and the upper control arm.
One pair will fit driver and passenger side.
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