Hydroboost Flow Control Valve
From Pure Choice Motorsports
If your Hydro Boost system is making noise you may need to install a Low Volume valve on GM power steering pumps to reduce the volume of fluid flowing thru the system. These fittings use standard o'ring female connection. Please check the hex size of the valve on your pump to get the correct one... See our NEW Low Volume Valve fitting with -6 AN male p/n 11726
P/N 11756 1" hex Early GM pumps pre 1982
P/N 11757 7/8" hex Late GM pumps 1982 -up