• Features & Benefits:
  • Proportioning valve and distribution block all in one. Features a rotary adjustment to regulate rear brake pressure and help maintain correct brake bias between front and rear.
  • Distribution block connects to master cylinder and distributes brake fluid to all four wheels. 
  • This adjustable proportioning block allows you to run lines from the master cylinder to the block and then to the appropriate wheels. 
  • What is neat about it is that it also contains the proportioning valve and brake light switch.
  • This dramatically reduces the amount of fittings needed and potential leaks.

    • Adjustable Proportioning Valve Distribution Block Brake Fittings Disc Drum PVC-B

    Features & Benefits:

    Proportioning valve and distribution block all in one. Features a rotary adjustment to regulate rear brake pressure and help maintain correct brake bias between front and rear.

    Distribution block connects to master cylinder and distributes brake fluid to all four wheels. 

    This adjustable proportioning block allows you to run lines from the master cylinder to the block and then to the appropriate wheels. 

    What is neat about it is that it also contains the proportioning valve and brake light switch.

    This dramatically reduces the amount of fittings needed and potential leaks.

    The adjustable proportioning valve regulates rear brake pressure, helping to maintain correct brake bias between front and rear brakes.

    It is designed for dual bowl master cylinders.

    The distribution block connects to the master cylinder and distributes brake fluid to all four wheels. An easy to turn handle with directional arrows makes it simple to either increase or decrease rear brake pressure.

    The block accepts 3/16" brake lines and the inlets and outlets on this unit are 3/8"-24 inverted flare females.

    It has two inlets from the master cylinder, two outlets to the front brakes and one outlet to the rear brakes. It includes five  3/16" fittings and wiring pigtail for rear brake light switch.

    Mounts to any convenient location.

    Includes five  steel fittings for 3/16" brake line

    Brake light switch

    Wiring pigtail.

    Brass internals parts

    (2) Outs for front Left & Right brakes

    (1) Out for rear brakes

    (2) In from master cylinder

    All fittings are 3/16"

    Chrome Finish

    Approx less than 1 lb.

     

    For the Following Cars：

    For Universal 

    Replacement for Chevy 1955-1957

    Replacement for Chevrolet-impala 1958-1964

    Replacement for Chevrolet-impala 1965-1966

    Replacement for Chevelle GTO 442 GS 1964-1972

    Replacement for Camaro/Firebird 1967-1969

    Replacement for Chevrolet Nova 1964-1967

    Replacement for Nova Ventura Omega Apollo 1968-1974

    Replacement for Chevy and GMC Trucks 1967-1972

    Replacement for Chevy and GMC Trucks 1960-1966

     

    Package Including：

    1 *Proportioning valve & distribution block

     

    Notes：

    • Professional Installation is Highly Recommended
    • Please check the part number and compare with pictures provided here before purchasing to ensure proper fitment.
    • Any questions please send us eBay message.

     

     

     

     

     

     

     

     

     


    Item Specifics
    Country of Origin United States
    Brand WFLNHB
    Manufacturer Part Number ON560694L
    Type Electric Brake
    Warranty 2 Year
    Custom Bundle Yes
    Bundle Description Fittings, line adapter, wiring pig tail, chromed aluminum block
    Non-Domestic Product Yes
    Part Number PVC-B

    Payment

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    Adjustable Proportioning Valve Distribution Block Brake Fittings Disc Drum PVC-B

    Features & Benefits:

    Proportioning valve and distribution block all in one. Features a rotary adjustment to regulate rear brake pressure and help maintain correct brake bias between front and rear.

    Distribution block connects to master cylinder and distributes brake fluid to all four wheels. 

    This adjustable proportioning block allows you to run lines from the master cylinder to the block and then to the appropriate wheels. 

    What is neat about it is that it also contains the proportioning valve and brake light switch.

    This dramatically reduces the amount of fittings needed and potential leaks.

    The adjustable proportioning valve regulates rear brake pressure, helping to maintain correct brake bias between front and rear brakes.

    It is designed for dual bowl master cylinders.

    The distribution block connects to the master cylinder and distributes brake fluid to all four wheels. An easy to turn handle with directional arrows makes it simple to either increase or decrease rear brake pressure.

    The block accepts 3/16" brake lines and the inlets and outlets on this unit are 3/8"-24 inverted flare females.

    It has two inlets from the master cylinder, two outlets to the front brakes and one outlet to the rear brakes. It includes five  3/16" fittings and wiring pigtail for rear brake light switch.

    Mounts to any convenient location.

    Includes five  steel fittings for 3/16" brake line

    Brake light switch

    Wiring pigtail.

    Brass internals parts

    (2) Outs for front Left & Right brakes

    (1) Out for rear brakes

    (2) In from master cylinder

    All fittings are 3/16"

    Chrome Finish

    Approx less than 1 lb.

     

    For the Following Cars：

    For Universal 

    Replacement for Chevy 1955-1957

    Replacement for Chevrolet-impala 1958-1964

    Replacement for Chevrolet-impala 1965-1966

    Replacement for Chevelle GTO 442 GS 1964-1972

    Replacement for Camaro/Firebird 1967-1969

    Replacement for Chevrolet Nova 1964-1967

    Replacement for Nova Ventura Omega Apollo 1968-1974

    Replacement for Chevy and GMC Trucks 1967-1972

    Replacement for Chevy and GMC Trucks 1960-1966

     

    Package Including：

    1 *Proportioning valve & distribution block

     

    Notes：

    • Professional Installation is Highly Recommended
    • Please check the part number and compare with pictures provided here before purchasing to ensure proper fitment.
    • Any questions please send us eBay message.

     

     

     

     

     

     

     

     

     

    Item Specifics
    Country of Origin :United States
    Brand :WFLNHB
    Manufacturer Part Number :ON560694L
    Type :Electric Brake
    Warranty :2 Year
    Custom Bundle :Yes
    Bundle Description :Fittings, line adapter, wiring pig tail, chromed aluminum block
    Non-Domestic Product :Yes
    Part Number :PVC-B


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    On Mar 21, 2026 at 20:40:57 PDT, seller added the following information:

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