This brake backing plate provides structure for the other components in the braking system, while also helping to keep debris from entering. It is designed with a rust-resistant coating that counters harsh winter weather conditions and humidity. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick Century: 1978, 1979, 1980, 1981] - [Buick Regal: 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987] - [Chevrolet El Camino: 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987] - [Chevrolet LLV: 1987, 1988, 1989, 1990, 1991] - [Chevrolet Malibu: 1978, 1979, 1980, 1981, 1982, 1983] - [Chevrolet Monte Carlo: 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988] - [Chevrolet S10 Blazer: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991] - [Chevrolet S10: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992] - [GMC Caballero: 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987] - [GMC S15 Jimmy: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991] - [GMC S15: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990] - [GMC Sonoma: 1991, 1992] - [GMC Syclone: 1991] - [Oldsmobile Bravada: 1991] - [Oldsmobile Cutlass Calais: 1978, 1979, 1980, 1981, 1982, 1983, 1984] - [Oldsmobile Cutlass Cruiser: 1980, 1981, 1982, 1983] - [Oldsmobile Cutlass Supreme: 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988] - [Oldsmobile Cutlass: 1978, 1979, 1980, 1981, 1985, 1986, 1987] - [Pontiac Bonneville: 1982, 1983, 1984, 1985, 1986] - [Pontiac Grand Am: 1978, 1979, 1980] - [Pontiac Grand LeMans: 1978, 1979, 1980, 1981] - [Pontiac Grand Prix: 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987] - [Pontiac LeMans: 1978, 1979, 1980, 1981].