Every TRW part has four levels of testing/technical/audit review before approval is given including endurance testing of 500K cycles Advanced OE design to help improve fuel economy, emissions, energy savings, driving comfort and most importantly, safety Manufactured with Aluminum to make the Suspension Lighter, in turn, Reducing Energy Consumption For confirmed fitment of this TRW Automotive Suspension Control Arm Shaft Kit please verify your vehicle with the Amazon 'Check Fit' option Fits: Chevrolet Blazer: 1973 - 1974, Chevrolet C10: 1975 - 1986, Chevrolet C10 Pickup: 1973 - 1974, Chevrolet C10 Suburban: 1973 - 1986, Chevrolet G10: 1975 - 1982, Chevrolet G10 Van: 1973 - 1974, Chevrolet G20: 1975 - 1995, Chevrolet G20 Van: 1973 - 1974, Chevrolet K5 Blazer: 1975 - 1982, Chevrolet R10: 1987, Chevrolet R10 Suburban: 1987 - 1988, Chevrolet R1500 Suburban: 1989 - 1991, GMC C15: 1975 - 1978, GMC C15 Suburban: 1975 - 1978, GMC C15/C1500 Pickup: 1973 - 1974, GMC C15/C1500 Suburban: 1973 - 1974, GMC C1500: 1979 - 1986, GMC C1500 Suburban: 1979 - 1986, GMC G15: 1975 - 1978, GMC G15/G1500 Van: 1973 - 1974, GMC G1500: 1979 - 1982, GMC G25: 1975 - 1978, GMC G25/G2500 Van: 1973 - 1974, GMC G2500: 1979 - 1995, GMC Jimmy: 1975 - 1982, GMC R1500: 1987, GMC R1500 Suburban: 1987 - 1991