Energy Suspension 78-81 Buick Century Front Upper Coil Spring Isolator - BlackMade of superior Hyper Flex (TM) material. Saves replacing again and again, lasting 3 to 10 times longer. Assemble to chassis the same way as OEM isolators and do not adversely change ride characteristics. This Part Fits: Year Make Model Submodel 1973 1975 Buick Apollo Base 1975 Buick Apollo SR 1980 1981 Buick Century Base 1978 1979 Buick Century Custom 1980 1981 Buick Century Estate 1978 1981 Buick Century Limited 1978 1979 Buick Century Special 1978