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1978-87 Chevy/GMC Full Size Truck Front Disc/ Rear Drums Proportioning Valve

Our Price $78.88

For 1978,1979,1980,1981, 1982, 1983, 1984, 1985, 1986, and 1987 Full-Size Chevy and GMC Trucks

    Our Price:
    $78.88
    Code:
    78-87-gm-fs-truck-prop-valve
    Manufacturer:
    CCT Inc.
    Part #:
    78-87-GM-FS-Truck-Prop-Valve
    Application:
    Chevy/GMC Full Size Truck
    Add UPS Overnight Shipping (Not available to Alaska, Hawaii, and Puerto Rico. Not available Friday, Saturday, or Sunday. Must complete order before 2pm eastern.) - $70
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    Product Description

    1978-87 Chevy Truck Front Disc/Rear Drums Proportioning Valve
    Works on all 1978-87 Chevy and GMC full size trucks that have front disc brakes and drum rear brakes.
    Works on half ton through one ton, 2 and 4 wheel drive
      
    This Chevy truck brake proportioning valve comes with a 1 year warranty.
     For use on Disc/Drum Setup Only
     

    Disc/Drum Proportion Valve


    Our brake proportioning valve has a 9/16"-18 connection for Rear Brakes & Dual 3/8"-24 ports for the front brakes.
    The connections from the Master Cylinder are 1/2"-20 and 7/16"-24.
    This valve comes with a 1 year warranty.
    We also offer a pigtail for the prop valve wire sensor and a prop valve bleeding tool in the related items section of this page.

    If you drive a Chevrolet or GMC full-size truck from model years 1981 - 1987, then this is the correct brake proportioning valve for your front disc and rear drum brakes. This part works on full-size Chevy and GM trucks from half ton through one ton, whether it's a 2-wheel drive or a 4-wheel drive. If you've got GMC or Chevy brake proportioning valve problems, this part will help fix the following vehicles:

    • 1981 Full-Size Chevrolet Truck
    • 1982 Full Size Chevrolet Truck
    • 1983 Full-Size Chevrolet Truck
    • 1984 Full Size Chevrolet Truck
    • 1985 Full-Size Chevrolet Truck
    • 1986 Full Size Chevrolet Truck
    • 1987 Full-Size Chevrolet Truck
    • 1981 Full-Size GMC Truck
    • 1982 Full Size GMC Truck
    • 1983 Full-Size GMC Truck
    • 1984 Full Size GMC Truck
    • 1985 Full-Size GMC Truck
    • 1986 Full Size GMC Truck
    • 1987 Full-Size GMC Truck

    Vehicle Applications

    This part is designed to fit the following vehicles.

    Chevy Truck 1978
    Chevy Truck 1979
    Chevy Truck 1980
    Chevy Truck 1981
    Chevy Truck 1982
    Chevy Truck 1983
    Chevy Truck 1984
    Chevy Truck 1985
    Chevy Truck 1986
    Chevy Truck 1987
    GMC Truck 1978
    GMC Truck 1979
    GMC Truck 1980
    GMC Truck 1981
    GMC Truck 1982
    GMC Truck 1983
    GMC Truck 1984
    GMC Truck 1985
    GMC Truck 1986
    GMC Truck 1987

    Warranty Information

    1 year

    Customer Reviews

    Average 5 out of 55 out of 55 out of 55 out of 55 out of 5 based on 41 reviews

    Write an online review and share your thoughts with others.


    5 out of 55 out of 55 out of 55 out of 55 out of 5 Brake proportioning valve
    Review by Joshua from , on 8/8/2021
    I have an 88 R30 pickup, was a direct fit replacement for my prop valve. Works flawlessly. Solve a problem I've had for 2 years. (Rear tired locking up) I highly recommend this product
    5 out of 55 out of 55 out of 55 out of 55 out of 5 Awesome fit
    Review by Raymond from , on 10/27/2020
    Everything was as described. No modifications necessary. Built very well. Heavy duty
    5 out of 55 out of 55 out of 55 out of 55 out of 5 84 c10
    Review by Josh from , on 9/5/2020
    Works perfectly and fit perfectly.
    5 out of 55 out of 55 out of 55 out of 55 out of 5 PERFECT
    Review by Ken Messier from , on 7/24/2020
    Fast shipping, packaged well and fit prefect.. Highly recommend !
    5 out of 55 out of 55 out of 55 out of 55 out of 5 proportioning valve
    Review by Pete from , on 3/17/2020
    It works as intended
    5 out of 55 out of 55 out of 55 out of 55 out of 5 proportioning valve
    Review by Douglas LaRue from , on 2/12/2020
    This worked out great. Thanks so much
    5 out of 55 out of 55 out of 55 out of 55 out of 5 Chevy Van G-20 1986
    Review by Wayne Carlile from , on 10/24/2019
    This valve fit perfect with no need to bend the existing steel break lines or modify the support bracket. The threads were clean and cross threading wasn't an issue. The Bleeder tool did its job and prevented the valve from switching the emergency light on.
    5 out of 55 out of 55 out of 55 out of 55 out of 5 Well-machined part
    Review by Angelo from , on 6/8/2019
    Fit perfectly on my 86 g10. Exact fitting and thread dimensions and same mount dimensions. This was hard to find elsewhere thank you for supplying this proportioning valve!
    5 out of 55 out of 55 out of 55 out of 55 out of 5 Perfect Fit
    Review by George Peele from , on 2/16/2019
    Was concerned about the fit on a 40 year old truck at first. Not anymore.Everything fitted and worked perfect. Good job fellas !!
    5 out of 55 out of 55 out of 55 out of 55 out of 5 Proportioning valve for Chevy truck
    Review by William Dean from , on 12/16/2018
    Perfect fit and works great. No problems at all.

    View all 41 reviews