Proportioning Valves and Balance Bars

A Proportioning Valve is installed in the rear brake line and allows you to adjust the rate of pressure rise to the back brakes. With an adjustable proportioning valve, you can slow down the pressure rise that occurs when you apply the brakes. Under braking, most vehicles transfer more weight to the front wheels. When this happens, the rear wheels lose some weight and can lock up if the pressure is too great too quickly in the braking process. Eventually full pressure is applied to the rear brakes through the proportioning valve.

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Brakes & Drivetrain Proportioning Valves and Balance Bars

JEGS Performance Products O.E. Style Power Booster for 1967-1972 A & F Body


O.E. Style Power Booster
  • 1967-72 A & F Body
  • 11" Single Diaphragm
  • Stamped with Delco Moraine on Front
  • $133.99
    $120.59
    ON SALE - $13.40 OFF
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    JEGS Performance Products O.E. Style Power Booster for 1964-1966 A-Body


    O.E. Style Power Booster
  • 1964-66 A-Body
  • 9" Single Diaphragm
  • Stamped with Delco Moraine on Front
  • $129.99
    $116.99
    ON SALE - $13.00 OFF
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    (1)

    JEGS Performance Products Adjustable Proportioning Valve


    Adjustable Proportioning Valve
  • 1/8" Inlet/Outlets
  • Height Open: 4.25"
  • Height Closed: 3.75"
  • Width: 1.5"
  • Depth: 1"
    Includes:
  • (2) 3/16" Brake Line Fitting Adapters
  • (2) 3/16" Tube Nuts
  • (2) 1/4" Brake Line Fitting Adap
  • $36.86
    $33.17
    ON SALE - $3.69 OFF
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    (6)

    JEGS Performance Products Adjustable Proportioning Valve


    Adjustable Proportioning Valve
  • Height Open: 3.5"
  • Height Closed: 3.125"
  • Width: 1.75"
  • Depth: 1"
    Includes:
  • (2) 3/8"-24IFM x 7/16"-24IFF (3/16") Tube Nuts
    (for 1/4" brake lines)
  • $41.79
    $37.61
    ON SALE - $4.18 OFF
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    (10)

    JEGS Performance Products O.E. Style Proportioning Valve/Distribution Block GM


    O.E. Style Proportioning Valve/Distribution Block
  • GM
  • One Piece Brass Body for Disc/Drum
  • For use with 9/16" & 1/2" Ports on Left (Drivers) Side of Master Cylinder
  • Includes Steel Lines, Mounting Bracket & Proportioning Valve Plug
  • $72.99
    $65.69
    ON SALE - $7.30 OFF
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    (1)

    JEGS Performance Products Proportioning Valve Disc/Drum GM


    Proportioning Valve
  • GM
  • Disc/Drum Applications
  • (2) 3/8"-24 Ports for Front Brakes
  • (1) 9/16"-18 Port for Rear Brakes
  • One Piece Brass Body
  • $48.99
    $44.09
    ON SALE - $4.90 OFF
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    (1)

    JEGS Performance Products Proportioning Valve Disc/Disc For: 4-Wheel Disc Brake Conversions


    Proportioning Valve
  • For: 4-Wheel Disc Brake Conversions
  • Disc/Disc Applications
  • (2) 3/8"-24 Ports for Front Brakes
  • (1) 9/16"-18 Port for Rear Brakes
  • One Piece Brass Body
  • $48.99
    $44.09
    ON SALE - $4.90 OFF
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    JEGS Performance Products Proportioning Valve and Distribution Block Rotary Adjustment Valve


    Proportioning Valve & Distribution Block
  • Rotary Adjustment Valve
  • 2 Inlets
  • 3 Outlets
  • Billet Aluminum
  • Black Anodize Finish with JEGS Logo
    Includes:
  • (5) Fittings
  • (1) Brake Light Switch
  • (1) Wiring Pigtail
  • $84.99
    $76.49
    ON SALE - $8.50 OFF
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    (3)

    JEGS Performance Products O.E. Style Proportioning Valve/Distribution Block GM


    O.E. Style Proportioning Valve/Distribution Block
  • GM
  • One Piece Brass Body for Disc/Disc
  • For use with 9/16" & 1/2" Ports on Left (Drivers) Side of Master Cylinder
  • Includes Steel Lines, Mounting Bracket & Proportioning Valve Plug
  • $89.99
    $80.99
    ON SALE - $9.00 OFF
    Ships Today
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    (1)

    JEGS Performance Products Proportioning Valve and Distribution Block Rotary Adjustment Valve


    Proportioning Valve & Distribution Block
  • Rotary Adjustment Valve
  • 2 Inlets
  • 3 Outlets
  • Billet Aluminum
  • Polished Finish with JEGS Logo
  • Made in the USA
    Includes:
  • (5) Fittings
  • (1) Brake Light Switch
  • (1) Wiring Pigta
  • $119.99
    $107.99
    ON SALE - $12.00 OFF
    Ships Today
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    (1)

    JEGS Performance Products Proportioning Valve Kit Disc/Drum GM Left Side


    Proportioning Valve Kit
  • GM Left Side
  • Disc/Drum Applications
  • (2) 3/8"-24 Ports Front Brakes
  • (1) 9/16"-18 Port Rear Brakes
  • One Piece Chrome Body
    Includes:
  • Steel Lines
  • Dash warning light connector
  • Proportioning Valve Plug
  • $80.99
    $72.89
    ON SALE - $8.10 OFF
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    JEGS Performance Products O.E. Style Master Cylinder for 1970-1974 GM


    O.E. Style Master Cylinder
  • 1970-74 GM
  • Dual Reservoir-Rectangle for Disc-Drum Cars
  • 1-1/8" Shallow Bore (0.2595" deep)
  • 9/16" & 1/2" Ports on Left (Drivers) Side w/Bleeder Valves
  • Reproduction
  • $81.99
    $73.79
    ON SALE - $8.20 OFF
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    (1)

    JEGS Performance Products O.E. Style Master Cylinder for 1967-1977 F-Body


    O.E. Style Master Cylinder
  • 1967-77 F-Body
  • Dual Reservoir-Oval
  • 1-1/8" Bore
  • 9/16" & 1/2" Ports on Left (Drivers) Side w/Bleeder Valves
  • GM Original Part #5463809
  • $81.99
    $73.79
    ON SALE - $8.20 OFF
    Ships Today
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    JEGS Performance Products Proportioning Valve Disc/Drum GM


    Proportioning Valve
  • GM
  • Disc/Drum Applications
  • (2) 3/8"-24 Ports for Front Brakes
  • (1) 9/16"-18 Port for Rear Brakes
  • One Piece Chrome Body
  • $70.99
    $63.89
    ON SALE - $7.10 OFF
    Ships Today
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    JEGS Performance Products Proportioning Valve and Distribution Block Rotary Adjustment Valve


    Proportioning Valve & Distribution Block
  • Rotary Adjustment Valve
  • 2 Inlets
  • 3 Outlets
  • Cast Aluminum
  • Black Finish
    Includes:
  • (5) Fittings
  • (1) Brake Light Switch
  • (1) Wiring Pigtail
  • $85.99
    $77.39
    ON SALE - $8.60 OFF
    Ships Today
    New

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    JEGS Performance Products Proportioning Valve Disc/Disc For: 4-Wheel Disc Brake Conversions


    Proportioning Valve
  • For: 4-Wheel Disc Brake Conversions
  • Disc/Disc Applications
  • (2) 3/8"-24 Ports for Front Brakes
  • (1) 9/16"-18 Port for Rear Brakes
  • One Piece Chrome Body
  • $70.99
    $63.89
    ON SALE - $7.10 OFF
    Estimated Ship Date: 10/26/17
    Lowest Price Guarantee