For 1980-'88 G-Body. Comes with 5/8" x 18 Male Flare to 16MM O-Ring Female and 11/16" x 18 Male Flare to 18MM O-Ring Female. Sold as a pair. Needed with 500 Series Power Steering Conversion Box for 1980-1988 G-Body. This part is useful for those with a 16mm and 18mm power steering box. If your power steering gearbox uses inverted flare fittings, these adapters can be used with O-ring power steering hoses. This fitting is useful for converting to a 11/16"-18 and 5/8"-18 setup.