This is a custom CNC machined adapter for converting your late model LS power steering pump high-pressure outlet to fit 1979 and older GM style 3/8 inverted flare fittings. This brass fitting will thread into the high pressure flow valve on your 1980+ GM power steering pump to allow you to use factory 1979 and older invertered flare lines. Includes the viton o-ring. Will fit all Gen 3 and Gen 4 LS power steering pumps including Corvette, Camaro, GTO, CTSV, and Vortec Truck power steering pumps.