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The Prothane lower spring pad for 1970–1981 GM vehicles is a replacement spring isolator offered in black to fit multiple GM applications. It positions between the coil spring and mount to prevent metal-to-metal contact, helping reduce noise and protect factory surfaces. Install it when refreshing suspension components to improve spring alignment and longevity during routine maintenance or restoration.
Prothane 70-81 GM Lower Spring Pad (Multi) - Black
