The Wilwood adjustable proportioning valve is used to regulate and balance the brake system pressures for front vs rear. In drag race applications with 4-wheel disc brakes it is typically installed to regulate the front brakes. When using front disc with rear drum it may need to be installed to regulate the rear brakes. Add on the optional kit for line/fittings to run from master cylinder to proportioning valve.
Max pressure reduction: 57%
Inlet/outlet ports: 1/8-27 NPT - includes 2 brass fittings from Wilwood that adapt to 3/8 inverted flare - for your convenience Midwest chassis adds the 2 tube nuts that are required for installation but are not supplied by the manufacturer.
Mounting Hole Diameter: .250"
Mounting Hole Spacing: 1.00"
Weight: 5.2oz