Koni Special D (Red) Shock 89-91 Avanti All - FrontKONI Special 8040 series, red painted, internally rebound adjustable twin tube low pressure gas charged shock absorber. This Part Fits: Year Make Model Submodel 1989 1991 Avanti II Base 1973 1975 Buick Apollo Base 1975 Buick Apollo SR 1971 1973 Buick Centurion Base 1973 1977 Buick Century Base 1975 1977 Buick Century Custom 1976 Buick Century Indianapolis 500 Pace Car 1973 1975 Buick Century Luxus 1975 1977 Buick Century Special 1971 1974,1976 1979