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  • Adjustable Proportioning Blocks With Brake Light Switch
    Adjustable Proportioning Blocks With Brake Light Switch
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    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 stainless steel 3/16" fittings and wiring pigtail for rear brake light switch. Mounts to any convenient location. This is not a direct factory replacement for original blocks. Some line modifications may be necessary.

    910-31358 Instructions (PDF)

    Learn more about how adjustable proportioning valves work by reading our tech ar

  • Compact Adjustable Proportioning Valve
    Compact Adjustable Proportioning Valve
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    Very compact, can be hidden in cars that do not allow adjustable proportioning valves. Color reference scale on valve stem allows fast, accurate setting. Installs in rear brake line and allows you to adjust front-to-rear brake bias to prevent rear brake lock-up under heavy braking. 

    • Can be used as full shut-off valve
    • Rated to 2000 psi
    • Flows 3 gpm
    • Inlet:  1/8" NPT port
    • Outlet:  1/8" NPT port

    Learn more about how adjustable proportioning valves work by reading our tech article. Brake System Selection.  

  • Wilwood 260-11179 Adjustable Proportioning Block
    Wilwood 260-11179 Adjustable Proportioning Block
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    This block has the proportioning valve built-in to the rear brake ports and a stop light switch built into the front brake ports. All ports are 3/8"-24 inverted flare female.

    • Compact design simplifies mounting, plumbing, & wiring
    • Maintains full isolation between front and rear fluid circuits
    • Rear circuit has a single inlet and single outlet with the adjustable proportioning valve
    • Front circuit has a single inlet with two outlets

    Proportioning Valve Installation Instructions (PDF)

    Brake System Builder's Tip (Link)

    Detailed Schematic of Proportioning Block 

    Learn more about how adjustable proportioning valves work by reading our tech article. Brake System Selection.   

  • Adjustable Proportioning Valve Block, Brake Distribution System
    Adjustable Proportioning Valve Block, Brake Distribution System
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    Adjustable proportioning valve and distribution block with mounting bracket  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. Includes two stainless steel 3/16" brake line,3/8 24 flare nut brake light switch. Also available in chrome.

    • Rotary adjustment to regulate rear brake pressure and help maintain correct brake bias between front and rear
    • Connects to master cylinder and distributes brake fluid to all four wheels
    • Includes:
      • Two stainless steel 3/16" brake line
      • 3/8" 24 flare nut brake light switch
    • Choose from Black or Chrome finish

    Instructions (PDF)

    Learn more about how adjustable proportioning valves work by reading our tech article. Brake System Selection.  

  • Deluxe Disc Brake Kit, 1955-1964 Chevy Full-size Car, Stock Spindle
    Deluxe Disc Brake Kit, 1955-1964 Chevy Full-size Car, Stock Spindle
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    These kits allow you to mount front disc brakes on your 1955-1964 Chevy full-size car (Bel-Air, Biscayne, Impala, 150 Series, 210 Series). Front disc brakes provide a significant improvement in braking performance versus the drum brakes your old Chevy came with. This disc brake kit works with stock, drum brake spindles only - it does not work with 2" drop spindles. Kit will work with 14" wheels intended for disc brake applications, as well as most 15" (or larger) wheels.

    Rotors are 11" diameter with 5 on 4-3/4" bolt pattern and calipers have 7/16"-20 inlets. This kit will increase track width 7/8" per side or 1-3/4" total when installed. 

    • 11" Rotors
    • 5 on 4-3/4" - bolt pattern
    • Metric calipers
    • Calipers mount behind axle (rearward)
    • Will work with 14" & larger wheels intended for use with disc brakes
    • Bearings, pads, brackets included
    • Seals and hoses
    • Hardware included
    • Increases trac-width 7/8" per side
    • For '55-'64 Chevy fullsize cars. 

    910-31911 Instructions (PDF)

     

  • GM Disc/Drum Proportioning Valve for 1/2-20, 9/16-18 Outlets
    GM Disc/Drum Proportioning Valve for 1/2-20, 9/16-18 Outlets
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    These proportioning valves are similar to what GM used on many cars in the 70's. They are non-adjustable and may require an adjustable valve in the rear brakes (if needed). Block incorporates metering (for front brakes) and proportioning (for rear brakes) into one unit. For use with front disc, rear drum brake systems.

    Includes hard lines to connect to a master cylinder with 1/2"-20 and 9/16"-18 outlets.

    GM Proportioning Valve Plumbing Instructions (PDF)

  • GM Disc/Drum Proportioning Valve for 3/8-24 Outlets
    GM Disc/Drum Proportioning Valve for 3/8-24 Outlets
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    These proportioning valves are similar to what GM used on many cars in the 70's. They are non-adjustable and may require an adjustable valve in the rear brakes (if needed). Block incorporates metering (for front brakes) and proportioning (for rear brakes) into one unit. For use with front disc, rear drum brake systems.

    Includes hard lines to connect to a master cylinder with 3/8"-24 outlets.

    910-31364 Instructions (PDF)

  • GM Disc/Disc Proportioning Valve for 3/8-24 Outlets
    GM Disc/Disc Proportioning Valve for 3/8-24 Outlets
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    These proportioning valves are similar to what GM used on many cars in the 70's. They are non-adjustable and may require an adjustable valve in the rear brakes (if needed). Block incorporates metering (for front brakes) and proportioning (for rear brakes) into one unit. For use with four-wheel disc brake systems.

    Includes hard lines to connect to a master cylinder with 3/8"-24 outlets.

    910-31366 Instructions (PDF)

  • GM Disc/Disc Proportioning Valve for 1/2-20, 9/16-18 Outlets
    GM Disc/Disc Proportioning Valve for 1/2-20, 9/16-18 Outlets
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    These proportioning valves are similar to what GM used on many cars in the 70's. They are non-adjustable and may require an adjustable valve in the rear brakes (if needed). Block incorporates metering (for front brakes) and proportioning (for rear brakes) into one unit. For use with four-wheel disc brake systems.

    Includes hard lines to connect to a master cylinder with 1/2"-20 and 9/16"-18 outlets.

    910-31352 Instructions (PDF)

  • GM Midsize Brake Kit for 910-34923 Spindles
    GM Midsize Brake Kit for 910-34923 Spindles
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    Disc brake kit features 10 ½” GM vented cast iron rotors and 1969-77 GM single piston calipers. Track width is increased over stock O/E front end width by 3/4" overall or 3/8" per side.

    Spindles sold separately.

    910-31995 Instructions (PDF)

  • GM Metric Disc Brake Kit for 910-34921 1955-57 2" Drop Spindles
    GM Metric Disc Brake Kit for 910-34921 1955-57 2" Drop Spindles
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    Disc brake kit features 10-½” GM vented cast iron rotors and 1978-88 GM metric single piston calipers.

    • 10-1/2" rotors (O.E. on 1979-81 GM Midsize: Malibu, Monte Carlo, Cutlass, Regal, etc.) 
    • 5 x 4-3/4" bolt pattern
    • Rubber Brake Lines
    • 1978-88 GM Metric Calipers
    • 7/16"-20 inlet fitting
    • Includes all hardware: pads, slide bolts, seals, inner & outer wheel bearings, spindle nuts, dust caps

    Spindles sold separately.

    910-31992 Instructions (PDF)

  • Speedway 1955-57 Chevy Deluxe Front Disc Brake Kit
    Speedway 1955-57 Chevy Deluxe Front Disc Brake Kit
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    Just what's needed to update your classic Tri-Five Chevy! Eliminate those archaic ball bearings and gain first class stopping power all at once with this front disc brake conversion kit. Rotors and caliper brackets bolt onto your original spindles with no modification or machining required. Calipers mount to the front of the spindle.

    This disc brake kit will increase the total front track width by 1-3/4" (7/8” per side).

    • Uses 11" rotors and 1969-72 GM calipers (7/16"-20 inlets)
    • May not clear some 14" wheels
    • Bolts onto stock '55-'57 spindles with no machine work
    • Includes rubber brake hoses

    910-31949 Instructions (PDF)

  • Speedway Deluxe 1964-74 GM Car Front Disc Brake Kit
    Speedway Deluxe 1964-74 GM Car Front Disc Brake Kit
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    Front disc brakes provide a significant improvement in braking performance versus the drum brakes your car came with. This complete front disc brake conversion kit fits 1964-72 GM A-Body, 1967-69 GM F-Body and 1968-74 X-Body using your stock disc brake spindles or our new replacement stock height disc brake spindles # 910-34900.

    Kit includes 11" diameter vented brake rotor with 5 on 4-3/4" wheel bolt pattern, '69-'77 GM style calipers (7/16"-20 inlets), caliper brackets, brake pads, backing plates, rubber brake lines, and all necessary bearings, seals and hardware for an easy, complete installation onto factory disc brake spindles.

    Note:  Brake kit will not fit our 2" dropped spindles # 910-34906 or stock drum brake spindles. Must be used with stock style disc brake spindles and 15" diameter or larger wheels.

    910-31958 Instructions (PDF)

  • 1955-57 Chevy Car Disc/Disc Brake Booster Master Cylinder Combo
    1955-57 Chevy Car Disc/Disc Brake Booster Master Cylinder Combo
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    When you put modern front & rear disc brakes on your '55-'57 Chevy car, you should update the master cylinder as well. Why not use one of these simple bolt-on power brake systems? Kits contain a 1" bore master cylinder with 1/2"-20 and 9/16"-18 outlets, 8" dual diaphragm booster, and a knob style proportioning/metering valve. Also includes the necessary hardware to mount the booster to your original '55-'57 Chevy brake pedal.

    Measures 14-1/4" from firewall bracket to end of master cylinder.

    Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection

  • 1932 Lo-Boy Front Disc Brake Kit
    1932 Lo-Boy Front Disc Brake Kit
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    This brake kit includes Mustang II/Pinto brake components to fit the '32 Lo-Boy 1949-54 Chevy spindles. Kit features 9-1/4" iron rotors, rebuilt single piston calipers, pads, stainless braided AN 4 brake lines, fittings, & hardware.

    NOTE: Kit includes rotors with 5 on 4.5" bolt pattern. If you need the 5 on 4.75" bolt pattern, please specify this in the Comments box on the Order Summary/Payment Info page (page 2) when checking out.

     

  • 1955-64 Chevy Full-size Car Brake Booster Combo, Disc/Disc, Drum/Drum
    1955-64 Chevy Full-size Car Brake Booster Combo, Disc/Disc, Drum/Drum
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    When you put modern disc brakes on your 1955-1964 Chevy full-size car (Bel-Air, Biscayne, Impala, 150 Series, 210 Series), you should update the master cylinder as well. Stock 4-wheel drum master cylinders do not have the capacity to supply the proper amount of pressure for disc brakes. For best results, we recommend using this simple, bolt-on master cylinder booster kit on all 4-wheel disc brake conversions or as a power brake upgrade for 4-wheel drum brake applications.

    • 8" dual diaphragm booster
    • 1" bore master cylinder
    • Adjustable proportioning valve for rear brake line
    • Master cylinder has outlets on both sides for ease of plumbing
    • 1/2"-20 and 9/16"-18 outlets

    Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection.

  • Garage Sale - 1955-64 Chevy Full-Size Car Brake Booster Combo, Disc/Disc, Drum/Drum
    Garage Sale
    Garage Sale - 1955-64 Chevy Full-Size Car Brake Booster Combo, Disc/Disc, Drum/Drum
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    When you put modern disc brakes on your 1955-1964 Chevy full-size car (Bel-Air, Biscayne, Impala, 150 Series, 210 Series), you should update the master cylinder as well. Stock 4-wheel drum master cylinders do not have the capacity to supply the proper amount of pressure for disc brakes. For best results, we recommend using this simple, bolt-on master cylinder booster kit on all 4-wheel disc brake conversions or as a power brake upgrade for 4-wheel drum brake applications.

    • 8" dual diaphragm booster
    • 1" bore master cylinder
    • Adjustable proportioning valve for rear brake line
    This kit is garage sale priced because it is missing the prop valve.  What you see is what you get.
     
    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS