This is a Brand New 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 Ford Chevy GMC Car and Truck Chrome Brake Disc/Drum Combination Proportioning Valve . This valve is a direct replacement valve with no modifications needed. No need to cut any wires with this valve even has the correct switch! This valve does not come with fittings. 

This brake valve is a 5 port valve and will work as left mount, right mount or bottom mount.   The valve has 9/16" connection for Rear Brakes & Dual 3/8" ports for the front brakes. The connections from the Master Cylinder are 1/2"-20 and 7/16"-24. The Proportioning Valve allows proper fluid transfer and contains a residual pressure valve for proper braking.