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- Brake Boosters
- Disc Brake Kits
- Master Cylinders
- Proportioning / Combo Valves
- Pedal Assemblies
- Brackets & Pedals
- Booster Conversion Kits
- Garage Sale/ Returns
- Special Order Custom Builds
- Mopar B & E Body
- Mopar A Body 5x4.5
- Mopar A Body 5x4
- Disc Brake Upgrades
- Line Kits
- 1965-1968 Impala/ Bel Air
- 1967-1969 Camaro/ Firebird
- 1964-1972 GM A Body (Chevelle)
- 1959-1964 Chevy Impala Bel Air
- 1955-1958 Chevy Impala Bel Air
- 1962-1967 Chevy II
- 1968-1974 Chevy Nova
- Black Out Series
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Shop CategoriesBrake BoostersDisc Brake KitsMaster CylindersDisc/ Disc Disc/ DrumDisc/ Drum Drum/DrumProportioning / Combo ValvesPedal AssembliesSpindlesBrackets & PedalsBooster Conversion KitsSteeringAccessoriesGarage Sale/ ReturnsSpecial Order Custom BuildsMopar B & E BodyMopar A Body 5x4.5Mopar A Body 5x44x4Disc Brake UpgradesGMFordLine Kits1965-1968 Impala/ Bel Air1967-1969 Camaro/ Firebird1964-1972 GM A Body (Chevelle)1959-1964 Chevy Impala Bel Air1955-1958 Chevy Impala Bel Air1962-1967 Chevy II1968-1974 Chevy NovaBlack Out Series
Chevy Truck Proportioning Valve Disc/Drum
Chevy Truck Proportioning Valve Brass GM Proportioning Great fit for your classic Universal Combination Disc/Drum INCLUDES FREE Prop Valve Bleeder TOOL!! Helps you bleed your prop valve 2 Inputs from master 2 Outputs to brakes (one port blocked off for trucks)Block Off Plug is included
The perfect compliment to your disc/drum brake setup. This proportioning valve (also known as a combination valve) helps proportion the amount of pressure sent to the front and rear brakes, helping prevent rear note that this valve has: (2) 3/8-24" ports for the front left and right calipers (PLUG INCLUDED)
(1) 9/16-18" port for the rear brakes.
The fitting sizes may be different on your vehicle.
You may need adapters for the valve to work.
Will it work? YES but please make sure you have these line sizes or have adapters ready to install if you need to.Do your homework. If you only have one port coming out of your proportioning valve for the front brakes we want to be clear you will have to block off one of the ports on this valve. Some vehicles have front left and right independent lines going to the front calipers and some vehicles have only one line coming from the proportioning valve that gets plumbed to a "T" then distributes fluid to front left and right calipers. Make sense? If not give us a message and we are happy to assist you with your brakes or braking questions.
About UsPirate Jack Hot Rod Restoration is your one-stop-shop for quality disc brake conversions, brake boosters, master cylinders, and proportioning valves. We specialize in performance brakes for late fullsize GM cars from 1955-70 and muscle cars from 1962-74, Mopar, Chevy, & Ford. Pirate Jack also carries a full line of parts for Street Rods & Custom Built cars, including pedal assemblies, and hard to find power boosters, GM Restoration Parts, disc brake kits, and suspension products.
Check out our tech page for information like how to test a brake booster, how to hook up a proportioning valve, how to plumb my brake lines, how to test my master cylinder and a F.A.Q's on how to calculate pedal ratio. We offer FREE tech support on all our disc brake kits and booster conversion kits to take the guess work out of your job. Pirate Jack offers how to guides and instructional videos on our video page. We strive to give you 100% satisfaction and we sincerely want to help you stop your vehicle and install our kits safely.
Tech SupportWe want your restoration to be easy! Before contacting us for technical support please make sure you followed the directions that came with your kit. If you did not receive instructions for your install you can send us an Message and we are happy to send you a set. We also have some instructional video's and other helpful support you may need. We give limited support on weekends and are available M-F 7:30-4:30 EST.
ShippingPirate Jack ships from Asheville NC, and we ship your disc brake conversion kits, master cylinders, brake boosters and other orders fast!! We are open Monday-Friday 8-4:00 pm EST. We usually ship your order within 2 business days of receiving your order, but it's not uncommon for us to ship the same day. See our map display for estimated shipping times. Most orders will ship UPS, smaller orders will ship via USPS flat rate box. Your order will be professionally and durably packed for its time in transit to you so we can give you the very best. We ship to the address provided by your paypal account, so if you wish for your order to go to an alternate address, please leave us this information in the NOTE section of your paypal payment at check out. We will email you a tracking number the day after your order leaves so you can follow it. In addition, you will receive a packing slip to check over your order. If there is ever any discrepancy, please contact us right away and we will reconcile it with you. We are firmly committed to providing you the best possible shipping cost and getting your order out of our door to yours as fast as we can!
WarrantyAll products are guaranteed for ONE YEAR FROM DATE OF PURCHASE, to be free of defects in materials and workmanship. The warranty does not start at the date of installation but the date of purchase. All product replacements will be sent to you via standard mail.
ReturnsCash/Refund-30 Days (Your refund will include a 5% restocking fee if in it?s original packaging. If product is opened or mounted 20% restocking fee will apply. (If your item was shipped to you for FREE, the original shipping cost will be deducted from the refund amount.)
Store Credit 30 Days (No restocking fee, less any deductions for damages, or original shipping)
Exchange only 30 Days (Customer pays for shipping both ways)
****All items that shipped free will incur a 5% Stocking Fee Automatically.
Shipping charges are not part of your refund and Pirate Jack is not responsible for the cost of shipping the items back and we do not send out call tags unless we have shipped you the wrong product. Credits will not be issued until the items have been shipped back to us in working condition. No returns on special order items like pre-bent line kits. If you no loner want the item you must ship back the item within 30 days and the original shipping will be deducted from your refund.
All returns are subject to approval by the RETURNS Department No guarantee of your return is implied.
We do not take exchanges or returns on product that has had fluid ran through them. (NO EXCEPTIONS)
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