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

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 Number:
    78-87-GM-FS-Truck-Prop-Valve
    Application:
    Chevy/GMC Full Size Truck

    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
     
    Our Proportion 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 below.

    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.

    • 1978 Full-Size Chevrolet Truck
    • 1979 Full-Size Chevrolet Truck
    • 1980 Full-Size Chevrolet Truck
    • 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 23 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 Works great
    Review by Ricky Godfrey from , on 9/4/2017
    This proportioning valve made my brakes work like brand new I would buy any brake parts that I need in the future from Carolina classics worth five stars easy
    5 out of 55 out of 55 out of 55 out of 55 out of 5 1978-87 Chevy/GMC Full Size Truck Front Disc/ Rear Drums Proportioning Valve
    Review by Bruce L. from , on 8/8/2017
    Worked fantastic on my brothers 1986 Chevy Pick up. connected right up with existing brake lines. Restored excellent Braking, best it has ever been. no more rear wheel lock up. Original OEM valve was shot.
    5 out of 55 out of 55 out of 55 out of 55 out of 5 Perfect!
    Review by Rick from , on 8/8/2017
    Great price, correct fit and fast delivery.
    4 out of 54 out of 54 out of 54 out of 54 out of 5 OEM replacment
    Review by Angelo from , on 7/2/2017
    CCT was the only place I could find a stock / OEM replacement brake valve for my 86 Chevy K10 restoration project. It seems most people choose to spend crazy money swapping disc brakes in back, but if you want to keep the original setup (disc in front and drum in back), you'll need this valve. All fittings fit perfectly, I have not installed it yet (it will be a long project), hence the four star rating, but I doubt it will give me any issues.
    5 out of 55 out of 55 out of 55 out of 55 out of 5 excellent
    Review by pat brooking from Wales ND, ND on 10/12/2016
    puuuuuuuuuuuuuuuuuuurrrrrrrffffffffeeeeeeeccccccccctttttttttttt
    4 out of 54 out of 54 out of 54 out of 54 out of 5 Looks great
    Review by Vince's Auto Works from Uniontown, Pennsylvania on 9/7/2016
    The only reason I give this a four star rating instead of a five star rating is that truck this is going on is in the beginning of its reassembly of a frame off rebuild. I won't know how this works till its derivable but this valve looks like a quality well built unit. all of the new SS brake lines I'm using lined up perfect to all the ports on the valve. I don't anticipate any issues.
    5 out of 55 out of 55 out of 55 out of 55 out of 5 Perfect replacement
    Review by Carl johnson from Madras, OR on 7/2/2016
    Fit like an OEM part, probably is, Thanks.
    5 out of 55 out of 55 out of 55 out of 55 out of 5 Excellent part
    Review by Gregory Gardener from Providence, RI on 5/24/2016
    The part looked perfect but for some reason it wasn't right for my 1984 Chevy CD20. Other websites also recommended the same part. Beats me. I scrapped the truck.
    5 out of 55 out of 55 out of 55 out of 55 out of 5 proportioning valve replacement
    Review by Cashmans automotive from westminster , md on 4/12/2016
    This is the first time I used Carolina classic, from Web page to install, super easy, valve looks better than new. All threads and mounting holes perfect fit. Definitely the way to go.
    5 out of 55 out of 55 out of 55 out of 55 out of 5 Very good service
    Review by Van from , on 2/28/2016
    Helped me identify my part and fast responses

    View all 23 reviews

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