Drum brake version with factory plug in threaded port. Used brass fitting found on intake manifolds 1968-69 Mercury Cougar and Ford Mustang. Usually works with an adapter that screws into the rear of the intake manifold directly. With 3 vacuum ports for various accessories and a threaded port for the hard line going to the brake booster. We also offer this fitting for those with power disc brakes.
Replaces Ford part number C8AZ-9A474-B.