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The Prothane lower spring pad for 1970–1981 GM vehicles is a replacement spring isolator offered in red to fit multiple GM applications. It sits between the coil spring and chassis or perch to prevent metal-to-metal contact, reducing noise and aiding spring alignment during installation. Use it when refreshing suspension components to improve ride quality and protect original mounting surfaces.
Prothane 70-81 GM Lower Spring Pad (Multi) - Red
