Our 172-572 proportioning valve
will work as left mount, right mount or bottom mount. The 172-572
combination/prop valve has four connections.
It has a 9/16"-18 connection for Rear Brakes & one 3/8"-24 port for the front brakes.
The connections from the Master Cylinder are 1/2"-20 and 7/16"-24.
This valve does not come with the a wire sensor plug that snaps onto our valve. (See related items below)
This valve comes with a 1 year warranty.
This valve is a great replacement valve for 71-72 Chevy/GMC full size trucks, blazers and suburbans.
This valve is also a replacement valve for GM-326755.
The 172-572 Proportioning Valve allows proper fluid transfer and contains a residual pressure valve for proper braking.
We also a prop valve bleeding tool in the related items section of this page.
Fits Many Government Vehicles and
71-72 Chevy/GMC full size trucks, blazers and suburbans.
This valve is an exact replacement for the 14041636 GM Brake Proportioning Valve and the Delco 172-2215.