Brass Brake Proportioning Valve For Front Disc Rear Drum Setup Fits Classic Chevy Buick Trucks With Dual Reservoir Tanks Built Tough As Nails For Smooth Pedal Feel And Rock Solid Stopping Performance
✔️ Dual reservoir mount 1/2 disc 7/16 drum solid brass build
This single solid brake proportioning valve redirects hydraulic pressure to maintain even stopping power on classic platforms. It sits directly between your dual reservoir master cylinder and the wheel lines on vintage Chevrolet and Buick trucks. The straightforward layout drops right into stock firewall positions for quick bench testing or full restoration wiring jobs.
✅ Direct swap for factory part number 172-1353✅ Main feed opening sized at 1/2 inch for disc circuit
✅ Outlet fitting threads down to 7/16 inch for drum loop
✅ Cast from dense brass alloy to resist road debris impact
✅ Ships with steel bracket and fasteners for immediate bolt on work
💡 What does a brake proportioning valve actually control on older trucks?
This handy component keeps rear drum friction from grabbing too hard during heavy braking. It shifts fluid resistance forward so you get even bite without skidding.
- Stops rear locks from messing up steering during wet night cruising
- Cuts pedal shudder that shows up on old worn shoe surfaces
- Keeps stop distances tight when running lighter load beds