Brake Proportioning Valve, 4-Wheel Disc Brake Conversions, Designed for Disc/Disc Applications, (2) 3/8 in.-24 Ports for Front Brakes, (1) 9/16 in.-18 Port for Rear Brakes, One Piece Brass Body|JEGS Brake Proportioning Valve for Disc/Disc Applications and 4-Wheel Disc Brake Conversions [GM].
