Bilstein B6 Performance dampers are a performance upgrade to OE dampers designed to be paired with the OE factory spring. These dampers offer application specific valve settings with a monotube design to bring out the best handling performance of a vehicle. Each damper is rigorously tested for quality that meets or exceeds OE standards. B6 Performance dampers will provide improved safety and handling performance with the added benefit of world-famous Bilstein quality. This Damper fits: 1974 - 1981 Firebird 1976 - 1984 electra RWD with standard chassis 1984-1991 Electra 1977 -1987 Lesabre 1992 - 1996 Roadmaser Saloon 1990 - 1992 Roadmaster Estate 1976-1993 Fleetwood Saloon 1986 - 1994 Astro Bus 1981985 Astro Box 1984 - 1994 Astro Standard Passenger Van 1989 - 2005 ASTRO Extended Passenger Van and Cargo Van 1970 - 1981 Camaro 1972-1976 Caprice. With over 60 years of expertise in original equipment and more than 50 years in motorsport, Bilstein products and services stand out in the industry.