RestoParts Rubber Rear Coil Spring Insulator 1967-1977 Buick Chevy Oldsmobile and Pontiac Models A must-have for any vehicle. Help eliminate a noisy ride. These insulators are used between the coil spring and the frame of your vehicle to eliminate the noises created by metal-to-metal contact. Insulators are manufactured to OEM specifications for a precise fit and function. NOTES Authentic reproduction of the original GM product. Make & Model/Year Range Buick Riviera 1966-1975Rubber Buick Skylark 1967-1972Rear, Rubber Chevrolet Chevelle 1967-1972Rear, Rubber Chevrolet El Camino 1967-1972Rear, Rubber Chevrolet Monte Carlo 1970-1972Rear, Rubber Oldsmobile Cutlass/442 1967-1972Rear, Rubber Pontiac Bonneville 1961-1964Rear, Rubber Pontiac Bonneville 1967-1977Rear, Rubber Pontiac Catalina 1961-1964Rear, Rubber Pontiac Catalina 1967-1977Rear, Rubber Pontiac Grand Prix 1961-1964Rear, Rubber Pontiac Grand Prix 1967-1977Rear, Rubber Pontiac GTO 1967-1972Rear, Rubber Pontiac LeMans 1967-1972Rear, Rubber Pontiac Tempest 1967-1972Rear, Rubber