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.

Individual Products Product Groups
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
    Ships Monday
    FREE Shipping
    Lowest Price Guarantee



    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
    Ships Monday
    FREE Shipping
    Lowest Price Guarantee
    (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
    Ships Monday
    Lowest Price Guarantee
    (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
    Ships Monday
    Lowest Price Guarantee
    (10)

    Wilwood Combination Proportioning Valve Inlet Size: 3/8"-24 IF


    Combination Proportioning Valve
  • Inlet Size: 3/8"-24 IF
  • Outlet Size: 3/8"-24 IF
  • Includes Brake Light Switch
  • Fittings (950-220-0097) Sold Separately
  • $85.95
    Estimated Ship Date: 12/06/17
    Lowest Price Guarantee
    (4)


    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
    Ships Monday
    Lowest Price Guarantee
    (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
    Ships Monday
    Lowest Price Guarantee
    (1)




    Wilwood Combination Proportioning Valve Mounting Bracket Kit Includes: Left Hand Side Bracket


    Combination Proportioning Valve Mounting Bracket Kit
    Includes:
  • Left Hand Side Bracket
  • Fluid Tubes
  • Mounting Hardware
  • Spacers
  • Master Cylinder & Combination Proportioning Valve Not Included
  • $34.94
    Estimated Ship Date: 12/06/17
    Lowest Price Guarantee
    (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
    Ships Monday
    Lowest Price Guarantee



    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
    Ships Monday
    Lowest Price Guarantee
    (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 Monday
    Lowest Price Guarantee
    (1)

    Wilwood Combination Proportioning Valve Mounting Bracket Kit Includes: Combination Proportioning Valve


    Combination Proportioning Valve Mounting Bracket Kit
    Includes:
  • Combination Proportioning Valve
  • Bracket
  • Fluid Tubes
  • Mounting Hardware
  • Spacers
  • Master Cylinder Not Included
  • $118.06
    Ships Monday
    FREE Shipping
    Lowest Price Guarantee
    (2)







    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 Monday
    FREE Shipping
    Lowest Price Guarantee
    (1)

    Wilwood Combination Proportioning Valve with Mounting Bracket Inlet Size: 3/8"-24 IF


    Combination Proportioning Valve with Mounting Bracket
  • Inlet Size: 3/8"-24 IF
  • Outlet Size: 3/8"-24 IF
  • Brake Light Switch
  • Right Hand Side Bracket
  • Fluid Tubes
  • Mounting Hardware
  • Spacers
  • Master Cylinder Not Included
  • $118.06
    Ships Monday
    FREE Shipping
    Lowest Price Guarantee
    (2)

    Wilwood Combination Proportioning Valve Mounting Bracket Kit Includes: Right Hand Side Bracket


    Combination Proportioning Valve Mounting Bracket Kit
    Includes:
  • Right Hand Side Bracket
  • Fluid Tubes
  • Mounting Hardware
  • Spacers
  • Master Cylinder & Combination Proportioning Valve Not Included
  • $34.94
    Estimated Ship Date: 12/06/17
    Lowest Price Guarantee
    (1)