This proportioning valve is a direct replacement for the original 76-77 proportioning valve with proper fitting sizes.
Use for Broncos with disc brakes in front and drum brakes rear.
Recommended for any front disk brake conversion.
For dual wire brakes switch, wire both wires to the single new pigtail.
NOT FOR USE WITH FRONT DRUM BRAKES.
FORD MOTOR OEM # D5TZ-2B257-B
Synthetic fluid is NOT recommended
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