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SKU: 78-87-gm-fs-truck-prop-valve 1978-87 Chevy/GMC Full Size Truck Front Disc/ Rear Drums Proportioning Valve


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

  • SKU: 78-87-gm-fs-truck-prop-valve 1978-87 Chevy/GMC Full Size Truck Front Disc/ Rear Drums Proportioning Valve

  • $115.88

  • Manufacturer: CCT
  • Part #: 78-87-GM-FS-Truck-Prop-Valve
  • Application: Chevy/GMC Full Size Truck
    • Rating:
    5 out of 55 out of 55 out of 55 out of 55 out of 5 Read all reviews
  •  

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.

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

1 year

Related Products

Customer Reviews

Average 5 out of 55 out of 55 out of 55 out of 55 out of 5 based on 43 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 Art
Review by Mike G from , on 2/16/2025
Proportioning valve was beautiful and installed like factory.
5 out of 55 out of 55 out of 55 out of 55 out of 5 Perfect fit
Review by Steven from , on 1/5/2022
Great product, fit perfect in line with new brake lines. Fast delivery and great price, thanks for getting me back on the road!
5 out of 55 out of 55 out of 55 out of 55 out of 5 Brake proportioning valve
Review by Joshua from , on 8/9/2021
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 6/9/2019
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!

View all 43 reviews

If you drive a Chevrolet or GMC full-size truck from model years 1978 - 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:

  • 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