This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet G10: 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994] - [Chevrolet G20: 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994] - [Chevrolet G30: 1987, 1988] - [GMC G1500: 1989, 1990, 1991, 1992, 1993, 1994] - [GMC G2500: 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994] - [GMC G3500: 1987, 1988]