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UMI 1-inch rear lowering springs for 1964–1966 A-Body cars employ premium 9254 CrSi wire and a linear 130 lb/in rate to tighten handling and reduce the floating sensation common to older A-bodies. Suited for auto-x, pro-tour and street use, these springs are manufactured in the USA, finished with a protective black powdercoat and engineered for consistent ride height and long-term performance.
UMI Performance 64-66 GM A-Body 1in Lowering Spring Set Rear
