Features: This combination/proportioning valve regulates the flow of fluid from rear to front, helping to keep your brakes from locking up and warning you if there is ever a system failure. 3/8-24 ports for front left and right caliper and 9/16-18 port for the rear brakes 1/2-20" & 7/16-18" ports in from the master cylinder. This is a universal valve it will work on any vehicle as long as you can hook it up, though you may need to block off one of the front ports. Made of high-quality materials, reliable quality and very durable. Part number: 25509419, 172-1350, 172-1353, 172-1363, 172-1364, 172-2174, 172-2187, 172-2215, CLP-PV-2. Please note fitting sizes for plumbing before purchasing. Color: gold Part number: 25509419, 172-1350, 172-1353, 172-1363, 172-1364, 172-2174, 172-2187, 172-2215, CLP-PV-2 Fit for the following models: Buick Apollo 1973-1975 Buick Centurion 1971-1973 Buick Century 1954-1977 Buick Electra 1959-1975 Buick Estate Wagon 1959-1978 Buick Gran Sport 1965-1967 Buick GS 1970-1972 Buick GS 350 1968-1969 Buick GS 400 1968-1969 Buick GS 455 1970-1972 Buick Limited 1958 Buick Roadmaster 1950-1958 Buick Skylark 1958-1972 Buick Sportwagon 1964-1972 Buick Standard Six 1928 Buick Super 1950-1958 Chevrolet Bel Air 1950-1970 Chevrolet Biscayne 1958-1971 Chevrolet Brookwood 1958-1972 Chevrolet C10 1975-1986 Chevrolet C10 Panel 1960-1966 Chevrolet C10 Pickup 1960-1974 Chevrolet Camaro 1967-1980 Chevrolet Chevelle 1964-1973 Chevrolet El Camino 1964-1980 Chevrolet Impala 1958-1980 Chevrolet Malibu 1964-1983 Chevrolet Monte Carlo 1970-1980 Chevrolet Styleline Deluxe 1950-1952 Chevrolet Vega 1971-1977 Chevrolet Vega 1971 Ford Bronco 1966-1985 GMC C25 1975 Pontiac Bonneville 1957-1980 Pontiac Catalina 1955-1980 Pontiac Chieftain 1955-1958 Package includes: 1Proportional valve