Every TRW part has four levels of testing/technical/audit review before approval is given including endurance testing of 500K cycles Made with thermoplastic to increase flexibility and avoid cracking, providing a superior lifespan Low friction design restores steering and suspension systems back to their original operating performance For confirmed fitment of this TRW Automotive Radius Arm Bushing Kit please verify your vehicle with the Amazon 'Check Fit' option Fits: Ford Bronco: 1987 - 1996, Ford Bronco II: 1984 - 1990, Ford Explorer: 1991 - 1994, Ford F Super Duty: 1990 - 1997, Ford F-150: 1987 - 1996, Ford F-250: 1987 - 1997, Ford F-350: 1987 - 1997, Ford Ranger: 1983 - 1997, Mazda B2300: 1994 - 1997, Mazda B3000: 1994 - 1996, Mazda B4000: 1994 - 1997, Mazda Navajo: 1991 - 1994