If you have real sensitive or twitchy steering which allows your car to change lanes by itself, this is for you. These fittings were designed to be used when a GM power steering pump is used with a Mustang / T bird or any Ford power rack is used. These fittings reduce the volume of fluid from 3 gallons to 2 gallons per minute. There are 2 sizes of valves, on Early and Late pumps with metal reseviors use 1" hex valves, on TY II pump with plastic or remote reseviors use 7/8" Hex valves..The following fittings are for late model GM power steering pumps with metric female threads for pressure hose connection, with resevoir and remote style Type II pumps.
P/N 11756 P style pump 1" hex $ 17.95
P/N 11757 Type II remote pump 7/8" Hex $ 19.95