GM Disc/Disc Proportioning Valve for 1/2-20, 9/16-18 Outlets
Universal Fit, Disc Brake System Type, Fixed Proportioning Valve Type, 3-Port Port Quantity
- This non-adjustable proportioning valve is similar to 70's GM valves and provide OEM appearance
- This block incorporates metering for front brakes and proportioning for rear brakes into one unit
- For use with disc front and disc rear brake systems
- Hard lines are included to connect to a master cylinder with 1/2"-20 and 9/16"-18 outlets
- Two 3/8"-24 IFF outlets for the front brakes and one 9/16"-18 IFF outlet for the rear brakes
These proportioning valves are similar to what GM used on many cars in the 70s. They are non-adjustable and may require an adjustable valve in the rear brakes (if needed). Block incorporates metering (for front brakes) and proportioning (for rear brakes) into one unit. For use with four-wheel disc brake systems.
Includes hard lines to connect to a master cylinder with 1/2"-20 and 9/16"-18 outlets.
Item DetailsFor M/C with 1/2"-20 and 9/16"-18 outlets.
NotesBottom Front Port: 3/8"-24 IFF threads - goes to one front brake
Top Front Port: 3/8"-24 IFF threads - goes to one front brake
Middle Top Port: 1/2"-20 IFF threads - comes from master cylinder
Rear Top Port: 7/16"-24 IFF threads - comes from the master cylinder
Rear Most Port: 9/16"-18 IFF threads - goes to rear brakes
910-31352 Instructions (PDF)
Outlet FittingBottom front/Top front are 3/8"-24 IFF (to font brakes), Rearmost port is 9/16"-18 IFF (to rear brakes).
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