1967 Pontiac GTO, Lemans, Tempest, 1967-68 Buick Wildcat LeSabre, Oldsmobile Delta 88 98, Pontiac Grand Prix, Catalina Factory Disc Brake Hold Off Valve. 1967 GTO Disc Brake Hold Off Valve This kit includes the valve, bracket, and mounting bolt. This mounts on the master cylinder stud for disc cars. The fitting size is 7/16-24 for both in and out. This is the smaller 67 only valve body with large nut and special pontiac only bracket that holds the valve to the passenger side of the master. For the first time available 67 GM A-body GTO Disc Brake Hold Off Valve. This is the valve that is needed to make your car disc brakes.
