SPC Performance Chevrolet/GMC Mid Size (Older Models) Upper Ball JointThese ball joints fit a variety of GM and Chrysler applications. If you are installaing our Adjustable Control Arms these ball joints are the perfect fit to finish your suspension upgrade or a direct fit to replace worn ball joint on a stock arm. California Residents WARNINGThis Part Fits: Year Make Model Submodel 1973 1974 Buick Apollo Base 1973 1977 Buick Century Base 1975 1977 Buick Century Custom 1976 Buick Century Indianapolis 500 Pace Car 1973