This proportioning valve pigtail is for the aftermarket pro valve ONLY.
For dual wire brakes switch, wire both wires to the single new pigtail.
1976, 1977, 1978, 1979, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986 Ford Bronco 1976, 1977, 1978, 1979, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986 Ford F100, F150 | 
