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ACDelcoAdditional Garage EquipmentAdditivesAdvance Auto Parts ShopAftermarket & Performance Wheels and RimsATV Parts & AccessoriesAuto Detailing AccessoriesAuto FiltersAuto Paint ToolsAuto Repair ToolsAuto Safety AccessoriesAuto Tool StorageAutomotive Cleaners & DegreasersAutomotive ElectricalBody RepairBody Repair ToolsBrakes & Brake PartsBumpers & Bumper AccessoriesCar & Truck Covers and All Vehicle CoversCar & Truck Racks, Cargo Carriers & Ratchet StrapsCar Consoles, Console Parts & AccessoriesCar CustomizationCar LightingCar OrganizersCar WashCar Wash SoapCar Wash SuppliesDash Caps, Dashboard Covers & Rear Deck CoversDirt Bike Parts & AccessoriesDormanEngine & Powertrain Replacement PartsExhaust Parts & Emissions PartsGM OEM PartsGo Karts Parts & AccessoriesHarley Davidson Parts & AccessoriesHonda Powersports Parts & AccessoriesJeep Interior AccessoriesLIQUI MOLYLounging & HangoutMaintenance EquipmentMechanics ToolsMini Bike PartsMini ExcavatorsMotorcycle AccessoriesParking Brake Levers & AssembliesPerformance Brakes & AccessoriesPerformance Fittings and HosesPolaris Parts & AccessoriesPowersport VehiclesReplacement Auto PartsRoad Trip Oil, Fluids & FiltersRoad Trip TiresRV CoversShifters, Shift Knobs & Shift BootsShop by BrandShop by SizeSuspension Parts & ComponentsTemperature Switches/ Control ModulesTesla Parts & AccessoriesTire and Wheel AccessoriesTire InflatorsTire Performance GradeTire TypesTires by Rim SizeTires by VehicleTires by Vehicle Make and ModelTowing Hitches, Winches & AccessoriesTractor PartsTruck Bed AccessoriesTruck TiresUTV Parts & AccessoriesWheel CoversWheel Covers & HubcapsWilwood Brake Parts

Proportion System

Uses item details. Price when purchased online

Universal 8" Single Zinc Power Brake Booster & W/ 1" Bore Bail Top Master Cylinder Disc Disc Proportioning Prop Valve Kits w/Cast Iron $144.06

Universal 8" Single Zinc Power Brake Booster & W/ 1" Bore Bail Top Master Cylinder Disc Disc Proportioning Prop Valve Kits w/Cast Iron
Sponsored
current price $144.06

Universal 8" Single Zinc Power Brake Booster & W/ 1" Bore Bail Top Master Cylinder Disc Disc Proportioning Prop Valve Kits w/Cast Iron

5 out of 5 Stars. 1 reviews

Frame Mount Power Brake Pedal Assembly Compatible with 1949-1954 Chevy Car, w/ 7" Dual Diaphragm Booster, Master Cylinder & Disc/Drum Proportioning Valve Kit $181.41 Was $192.99

Frame Mount Power Brake Pedal Assembly Compatible with 1949-1954 Chevy Car, w/ 7" Dual Diaphragm Booster, Master Cylinder & Disc/Drum Proportioning Valve Kit
Sponsored
current price Now $181.41, Was $192.99

Frame Mount Power Brake Pedal Assembly Compatible with 1949-1954 Chevy Car, w/ 7" Dual Diaphragm Booster, Master Cylinder & Disc/Drum Proportioning Valve Kit

8" Dual Diaphragm Booster Disc/Disc Power Brake Booster & Master Cylinder Kit for 1955-1957 Chevy Bel Air 150 210, 1" Bore MC Proportioning Valve Lines Brackets $269.99

8" Dual Diaphragm Booster Disc/Disc Power Brake Booster & Master Cylinder Kit for 1955-1957 Chevy Bel Air 150 210, 1" Bore MC Proportioning Valve Lines Brackets
Sponsored
current price $269.99

8" Dual Diaphragm Booster Disc/Disc Power Brake Booster & Master Cylinder Kit for 1955-1957 Chevy Bel Air 150 210, 1" Bore MC Proportioning Valve Lines Brackets

Black Hydro Boost Power Brake Booster Firewall Mount Proportioning Valve and Rubber Hose Kit, For 1970-1980 Chevy Camaro $479.99

Black Hydro Boost Power Brake Booster Firewall Mount Proportioning Valve and Rubber Hose Kit, For 1970-1980 Chevy Camaro
Sponsored
current price $479.99

Black Hydro Boost Power Brake Booster Firewall Mount Proportioning Valve and Rubber Hose Kit, For 1970-1980 Chevy Camaro

Speedway Motors Universal Brake System Builder Kit, Includes Lines, Fittings, Valves, Wilwood Proportioning Block, 25-Foot Steel Brake Line Roll and Hardware $279.99

Speedway Motors Universal Brake System Builder Kit, Includes Lines, Fittings, Valves, Wilwood Proportioning Block, 25-Foot Steel Brake Line Roll and Hardware
current price $279.99

Speedway Motors Universal Brake System Builder Kit, Includes Lines, Fittings, Valves, Wilwood Proportioning Block, 25-Foot Steel Brake Line Roll and Hardware

4.5 out of 5 Stars. 46 reviews

PIXISS Proportional Divider Drawing Tool by Pixiss $8.94

PIXISS Proportional Divider Drawing Tool by Pixiss
current price $8.94

PIXISS Proportional Divider Drawing Tool by Pixiss

4.2 out of 5 Stars. 10 reviews
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Achieve Optimal Braking Control with Easy to Install Drum Brake Proportioning $60.16

Achieve Optimal Braking Control with Easy to Install Drum Brake Proportioning
current price $60.16

Achieve Optimal Braking Control with Easy to Install Drum Brake Proportioning

Proportional Divider Scale Artist Drawing Tool Multifunctional Compass Ruler Adjustable Caliper for Artists, Architects $9.47

Proportional Divider Scale Artist Drawing Tool Multifunctional Compass Ruler Adjustable Caliper for Artists, Architects
current price $9.47

Proportional Divider Scale Artist Drawing Tool Multifunctional Compass Ruler Adjustable Caliper for Artists, Architects

Proportional Divider Scale Artist Drawing Tool Multifunctional Drawing Ruler Adjustable Caliper for Artists, Architects $11.70

Proportional Divider Scale Artist Drawing Tool Multifunctional Drawing Ruler Adjustable Caliper for Artists, Architects
current price $11.70

Proportional Divider Scale Artist Drawing Tool Multifunctional Drawing Ruler Adjustable Caliper for Artists, Architects

Speedway Motors 91031367-BLK Adjustable Proportioning Valve Block From $124.99

Speedway Motors 91031367-BLK Adjustable Proportioning Valve Block
Black, variant on Speedway Motors 91031367-BLK Adjustable Proportioning Valve Block
Natural, variant on Speedway Motors 91031367-BLK Adjustable Proportioning Valve Block
Options
From$12499

Speedway Motors 91031367-BLK Adjustable Proportioning Valve Block

4.2 out of 5 Stars. 26 reviews

Compact Artist Proportional Scale Divider Drawing Tool Adjustable Caliper Subject Scale Divider Pantograph Drawing Tool $8.72

Compact Artist Proportional Scale Divider Drawing Tool Adjustable Caliper Subject Scale Divider Pantograph Drawing Tool
current price $8.72

Compact Artist Proportional Scale Divider Drawing Tool Adjustable Caliper Subject Scale Divider Pantograph Drawing Tool

Baguer Brake Proportioning Valve Manual Proportioner Black forged Aluminum Construction Pressure Adjustment 100-1000Psi $25.99

Baguer Brake Proportioning Valve Manual Proportioner Black forged Aluminum Construction Pressure Adjustment 100-1000Psi
current price $25.99

Baguer Brake Proportioning Valve Manual Proportioner Black forged Aluminum Construction Pressure Adjustment 100-1000Psi

Proportional Divider Scale Artist Drawing Tool Multifunctional Drawing Ruler Adjustable Caliper $6.97 Was $9.24

Proportional Divider Scale Artist Drawing Tool Multifunctional Drawing Ruler Adjustable Caliper
current price Now $6.97, Was $9.24

Proportional Divider Scale Artist Drawing Tool Multifunctional Drawing Ruler Adjustable Caliper

5 out of 5 Stars. 2 reviews

JEGS Adjustable Brake Proportioning Valve Kit with Mounting Bracket and Brake Lines [w/Black Proportioning Valve] $137.09

JEGS Adjustable Brake Proportioning Valve Kit with Mounting Bracket and Brake Lines [w/Black Proportioning Valve]
current price $137.09

JEGS Adjustable Brake Proportioning Valve Kit with Mounting Bracket and Brake Lines [w/Black Proportioning Valve]

2.5 out of 5 Stars. 6 reviews

YIWEI Brake Proportioning Valve Manual Proportioner Black forged Aluminum Construction Pressure Adjustment 100-1000Psi $25.99

YIWEI Brake Proportioning Valve Manual Proportioner Black forged Aluminum Construction Pressure Adjustment 100-1000Psi
current price $25.99

YIWEI Brake Proportioning Valve Manual Proportioner Black forged Aluminum Construction Pressure Adjustment 100-1000Psi

Wilwood 260-11179 Aluminum/Steel Knob Adjustable Combination Proportioning Valve $103.89

Wilwood 260-11179 Aluminum/Steel Knob Adjustable Combination Proportioning Valve
current price $103.89

Wilwood 260-11179 Aluminum/Steel Knob Adjustable Combination Proportioning Valve

Other options to consider

NFTIGB Universal Aluminum Black Brake Proportion Valve Adjustable Proportioning Brake Bias Adjuster 1/8NPT 150PSI-1200PSI Fits Ford Jeep $24.47

NFTIGB Universal Aluminum Black Brake Proportion Valve Adjustable Proportioning Brake Bias Adjuster 1/8NPT 150PSI-1200PSI Fits Ford Jeep
current price $24.47

NFTIGB Universal Aluminum Black Brake Proportion Valve Adjustable Proportioning Brake Bias Adjuster 1/8NPT 150PSI-1200PSI Fits Ford Jeep

M Buder Brake Prop Proportioning Valve Bleeder Bleed Tool for DISC DRUM PV2 PV4 AC 172-1371 Automotive Brake System Specialty Tools Aluminium Alloy Construction Car Accessory Tool Silver $10.10

M Buder Brake Prop Proportioning Valve Bleeder Bleed Tool for DISC DRUM PV2 PV4 AC 172-1371 Automotive Brake System Specialty Tools Aluminium Alloy Construction Car Accessory Tool Silver
current price $10.10

M Buder Brake Prop Proportioning Valve Bleeder Bleed Tool for DISC DRUM PV2 PV4 AC 172-1371 Automotive Brake System Specialty Tools Aluminium Alloy Construction Car Accessory Tool Silver

YAHHU Universal Brake Proportioning Valve Pressure Regulator Adjustable Prop Bias Adjuster for Vehicles Black 4.06 inches / 103.1 mm Premium Aluminum Replacement Part Durable Easy Installation $25.23

YAHHU Universal Brake Proportioning Valve Pressure Regulator Adjustable Prop Bias Adjuster for Vehicles Black 4.06 inches / 103.1 mm Premium Aluminum Replacement Part Durable Easy Installation
current price $25.23

YAHHU Universal Brake Proportioning Valve Pressure Regulator Adjustable Prop Bias Adjuster for Vehicles Black 4.06 inches / 103.1 mm Premium Aluminum Replacement Part Durable Easy Installation

JEGS Adjustable Brake Proportioning Valve and Distribution Block w/Rotary Adjustment Valve [Black] $105.99

JEGS Adjustable Brake Proportioning Valve and Distribution Block w/Rotary Adjustment Valve [Black]
current price $105.99

JEGS Adjustable Brake Proportioning Valve and Distribution Block w/Rotary Adjustment Valve [Black]

JEGS Adjustable Proportioning Valve $50.69

JEGS Adjustable Proportioning Valve
current price $50.69

JEGS Adjustable Proportioning Valve

4.7 out of 5 Stars. 24 reviews

Rupoun Brake Proportioning Valve Universal Motorsport Brake Shut Off Pressure Regulator, Aluminum Racing Drift Accessories, 150-1200 PSI Range, 1/8 NPT Connector, Black, 3.94 inches / 10 cm

Rupoun Brake Proportioning Valve Universal Motorsport Brake Shut Off Pressure Regulator, Aluminum Racing Drift Accessories, 150-1200 PSI Range, 1/8 NPT Connector, Black, 3.94 inches / 10 cm
Black, variant on Rupoun Brake Proportioning Valve Universal Motorsport Brake Shut Off Pressure Regulator, Aluminum Racing Drift Accessories, 150-1200 PSI Range, 1/8 NPT Connector, Black, 3.94 inches / 10 cm
Silver, variant on Rupoun Brake Proportioning Valve Universal Motorsport Brake Shut Off Pressure Regulator, Aluminum Racing Drift Accessories, 150-1200 PSI Range, 1/8 NPT Connector, Black, 3.94 inches / 10 cm
Options

Rupoun Brake Proportioning Valve Universal Motorsport Brake Shut Off Pressure Regulator, Aluminum Racing Drift Accessories, 150-1200 PSI Range, 1/8 NPT Connector, Black, 3.94 inches / 10 cm

Riousery Adjustable Inline Brake Proportioning Valve Kit with 2lb 10lb Residual Valves Replacement 260-8419 Universal Fit (11x7x5 cm / 4.33x2.76x1.97 inches) $39.25

Riousery Adjustable Inline Brake Proportioning Valve Kit with 2lb 10lb Residual Valves Replacement 260-8419 Universal Fit (11x7x5 cm / 4.33x2.76x1.97 inches)
current price $39.25

Riousery Adjustable Inline Brake Proportioning Valve Kit with 2lb 10lb Residual Valves Replacement 260-8419 Universal Fit (11x7x5 cm / 4.33x2.76x1.97 inches)

JEGS Brake Master Cylinder w/Dual Reservoir and Proportioning Valve Kit [Universal Mounting] $163.99

JEGS Brake Master Cylinder w/Dual Reservoir and Proportioning Valve Kit [Universal Mounting]
current price $163.99

JEGS Brake Master Cylinder w/Dual Reservoir and Proportioning Valve Kit [Universal Mounting]

GM Disc/Disc Proportioning Valve Kit: 1/2-20, 9/16-18 Master Cylinder Outlets, OEM-style for 70's GM, Integrated Metering & Proporting, Hard Lines Included, 4-Wheel Disc Brake Systems $115.99

GM Disc/Disc Proportioning Valve Kit: 1/2-20, 9/16-18 Master Cylinder Outlets, OEM-style for 70's GM, Integrated Metering & Proporting, Hard Lines Included, 4-Wheel Disc Brake Systems
current price $115.99

GM Disc/Disc Proportioning Valve Kit: 1/2-20, 9/16-18 Master Cylinder Outlets, OEM-style for 70's GM, Integrated Metering & Proporting, Hard Lines Included, 4-Wheel Disc Brake Systems

4.8 out of 5 Stars. 22 reviews

Speedway Motors Brake Proportioning Valve Kit with Fittings, Premium Brass Construction, 2000 PSI Rating, Compact Universal Fit for Disc Brake Systems $70.99 $70.99/count

Speedway Motors Brake Proportioning Valve Kit with Fittings, Premium Brass Construction, 2000 PSI Rating, Compact Universal Fit for Disc Brake Systems
current price $70.99
$70.99/count

Speedway Motors Brake Proportioning Valve Kit with Fittings, Premium Brass Construction, 2000 PSI Rating, Compact Universal Fit for Disc Brake Systems

JEGS Adjustable Brake Proportioning Valve and Distribution Block w/Rotary Adjustment Valve [Black, Billet Aluminum] $124.99

JEGS Adjustable Brake Proportioning Valve and Distribution Block w/Rotary Adjustment Valve [Black, Billet Aluminum]
current price $124.99

JEGS Adjustable Brake Proportioning Valve and Distribution Block w/Rotary Adjustment Valve [Black, Billet Aluminum]

3.6 out of 5 Stars. 7 reviews

Speedway Disc Brake Residual and Proportioning Valves, 2 PSI $82.99 $82.99/count

Speedway Disc Brake Residual and Proportioning Valves, 2 PSI
current price $82.99
$82.99/count

Speedway Disc Brake Residual and Proportioning Valves, 2 PSI

Baguer Brake Proportioning Valve Manual Proportioner Black forged Aluminum Construction Pressure Adjustment 100-1000Psi $26.99

Baguer Brake Proportioning Valve Manual Proportioner Black forged Aluminum Construction Pressure Adjustment 100-1000Psi
current price $26.99

Baguer Brake Proportioning Valve Manual Proportioner Black forged Aluminum Construction Pressure Adjustment 100-1000Psi

munirater Adjustable combination proportioning valve with Adjustable Knob 260-11179 2 inlets 3 outlets with brake switch $24.76 Was $35.31

munirater Adjustable combination proportioning valve with Adjustable Knob 260-11179 2 inlets 3 outlets with brake switch
current price Now $24.76, Was $35.31

munirater Adjustable combination proportioning valve with Adjustable Knob 260-11179 2 inlets 3 outlets with brake switch

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Dickly Premium Adjustable Disk Brake Proportioning Valve Auto Accessories Universal $27.99

Dickly Premium Adjustable Disk Brake Proportioning Valve Auto Accessories Universal
current price $27.99

Dickly Premium Adjustable Disk Brake Proportioning Valve Auto Accessories Universal

BotaniNest Brake Proportioning Aluminium Alloy Universal Brake Proportional Adjustable In Line Disc Drum Brakes 1501200 Pressure Range Universal Fit For Car Modification $25.09

BotaniNest Brake Proportioning Aluminium Alloy Universal Brake Proportional Adjustable In Line Disc Drum Brakes 1501200 Pressure Range Universal Fit For Car Modification
current price $25.09

BotaniNest Brake Proportioning Aluminium Alloy Universal Brake Proportional Adjustable In Line Disc Drum Brakes 1501200 Pressure Range Universal Fit For Car Modification

Speedway Motors Wilwood Adjustable Proportioning Block with Flare Nuts, Aluminum Anodized Black, 3/8-24 Inverted Flare Ports for 3/16 Brake Line, Universal Disc Brake $121.99 $121.99/count

Speedway Motors Wilwood Adjustable Proportioning Block with Flare Nuts, Aluminum Anodized Black, 3/8-24 Inverted Flare Ports for 3/16 Brake Line, Universal Disc Brake
current price $121.99
$121.99/count

Speedway Motors Wilwood Adjustable Proportioning Block with Flare Nuts, Aluminum Anodized Black, 3/8-24 Inverted Flare Ports for 3/16 Brake Line, Universal Disc Brake

Wilwood 26011179 Brake Proportioning Valve $105.89

Wilwood 26011179 Brake Proportioning Valve
current price $105.89

Wilwood 26011179 Brake Proportioning Valve

5 out of 5 Stars. 1 reviews

ABS Brake Proportioning Valve Depressor $44.99 $44.99/count

ABS Brake Proportioning Valve Depressor
current price $44.99
$44.99/count

ABS Brake Proportioning Valve Depressor

5 out of 5 Stars. 1 reviews

Brake Proportioning and Disc/Drum Residual Valve Kit $83.99 $83.99/count

Brake Proportioning and Disc/Drum Residual Valve Kit
current price $83.99
$83.99/count

Brake Proportioning and Disc/Drum Residual Valve Kit

4.8 out of 5 Stars. 4 reviews

Clearance Brake Proportioning Valve Aluminum Alloy Universal Adjustable 150-1200 Pressure Range Car Modification Disc Drum Brakes $26.79

Brake Proportioning Valve Aluminum Alloy Universal Adjustable 150-1200 Pressure Range Car Modification Disc Drum Brakes
current price $26.79

Brake Proportioning Valve Aluminum Alloy Universal Adjustable 150-1200 Pressure Range Car Modification Disc Drum Brakes

LABLT PV6 Brake Proportioning Valve for Disc/Drum Brake System PV6070FD Fit for Car Ford Mustang Falcon $31.80

LABLT PV6 Brake Proportioning Valve for Disc/Drum Brake System PV6070FD Fit for Car Ford Mustang Falcon
current price $31.80

LABLT PV6 Brake Proportioning Valve for Disc/Drum Brake System PV6070FD Fit for Car Ford Mustang Falcon

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Compact Adjustable Brake Proportioning Valve $59.99

Compact Adjustable Brake Proportioning Valve
current price $59.99

Compact Adjustable Brake Proportioning Valve

4.5 out of 5 Stars. 43 reviews

1PK OTC 7853 ABS Brake Proportioning Valve Depressor $55.76

1PK OTC 7853 ABS Brake Proportioning Valve Depressor
current price $55.76

1PK OTC 7853 ABS Brake Proportioning Valve Depressor

Thalyn Car Brake Proportion Valve Prop Brake Bias Adjuster, Aluminum Brake Proportion Valve for Racing Car $18.36

Thalyn Car Brake Proportion Valve Prop Brake Bias Adjuster, Aluminum Brake Proportion Valve for Racing Car
current price $18.36

Thalyn Car Brake Proportion Valve Prop Brake Bias Adjuster, Aluminum Brake Proportion Valve for Racing Car

JEGS Adjustable Proportioning Valve $64.99

JEGS Adjustable Proportioning Valve
current price $64.99

JEGS Adjustable Proportioning Valve

4.1 out of 5 Stars. 22 reviews

Hydro-Boost Hydraulic Disc Drum Power Brake Booster Kit With Master Cylinder Proportioning Valve, Compatible with 1967-1972 Chevy GMC Jimmy Blazer C10 C20 Suburban K10 K20 Suburban Truck $410.76 Was $436.98

Hydro-Boost Hydraulic Disc Drum Power Brake Booster Kit With Master Cylinder Proportioning Valve, Compatible with 1967-1972 Chevy GMC Jimmy Blazer C10 C20 Suburban K10 K20 Suburban Truck
current price Now $410.76, Was $436.98

Hydro-Boost Hydraulic Disc Drum Power Brake Booster Kit With Master Cylinder Proportioning Valve, Compatible with 1967-1972 Chevy GMC Jimmy Blazer C10 C20 Suburban K10 K20 Suburban Truck

Right Stuff PVK71 Disc/Drum Proportioning Valve, 70-81 Camaro $122.99 $122.99/count

Right Stuff PVK71 Disc/Drum Proportioning Valve, 70-81 Camaro
current price $122.99
$122.99/count

Right Stuff PVK71 Disc/Drum Proportioning Valve, 70-81 Camaro

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