Feature●This adapter fitting is commonly used to adapt power steering boxes to AN 6 connections●5/8"-18 inverted flare male on one end and AN6 male on the other●Inverted flare fittings are used on most GM power steering boxes 1977 and older●Metric thread O-ring fittings are used on later model GM power steering boxes 1978 and newer●Zinc plated for corrosion resistanceDescription