The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-15-2009, 11:17 PM   #1
sharpmotors
Registered User
 
sharpmotors's Avatar
 
Join Date: Nov 2009
Location: bridgeport,ct
Posts: 63
1985 k20 rear brake question

i just put my newly bought 85 k20 on the lift to do some work and saw this thing hangin off the frame in the rear and im not sure what it is.there is a bracket mounted to the frame with a thing on the end that the rear brake line runs into then back out to the rubber line that tees to the right and left brakes it also has a lever that moves that is bolted to the rear end,what is this thing?thanx for the info
sharpmotors is offline   Reply With Quote
Old 12-15-2009, 11:36 PM   #2
2tons of fun
Account Suspended
 
Join Date: Jan 2009
Location: galt ca,
Posts: 749
Re: 1985 k20 rear brake question

its called a load bias valve. it reduces brake preasure when there is no load in the bed to keep you from skidding the tires.

either tie it up or take it out.
2tons of fun is offline   Reply With Quote
Old 12-15-2009, 11:39 PM   #3
Scootin 81 C20
3/4 Ton Rodder
 
Scootin 81 C20's Avatar
 
Join Date: Jan 2009
Location: Manlius, IL
Posts: 1,146
Re: 1985 k20 rear brake question

Quote:
Originally Posted by 2tons of fun View Post
its called a load bias valve. it reduces brake preasure when there is no load in the bed to keep you from skidding the tires.

either tie it up or take it out.
Is there a chance that it could malfunction during the winter? I keep skidding my rears all around town until the brakes are pumped a few times.
__________________
1981 Chevy Scottsdale C20 "Orange Crush": SOLD

1989 Chevy Silverado K2500: All Stock (For Now), 350 TBI/700R4. DD/Light Duty Toy.
Scootin 81 C20 is offline   Reply With Quote
Old 12-16-2009, 12:13 AM   #4
sharpmotors
Registered User
 
sharpmotors's Avatar
 
Join Date: Nov 2009
Location: bridgeport,ct
Posts: 63
Re: 1985 k20 rear brake question

thanks for thefast response,so i take it i can eliminate it
sharpmotors is offline   Reply With Quote
Old 12-16-2009, 03:42 AM   #5
2tons of fun
Account Suspended
 
Join Date: Jan 2009
Location: galt ca,
Posts: 749
Re: 1985 k20 rear brake question

if it fails it is only going to give you 100% of the avialable braking power. if you keep sliding around you need to look at your pads, get new tires or quite driving to fast for conditions.


:guilty of all three:


yup, get it out of there, 90% of the trucks on the road dont have them at all. i am surprized to see that yours is a 3/4t, i have only seen them on 1t chevys.
2tons of fun is offline   Reply With Quote
Old 12-16-2009, 10:35 AM   #6
sharpmotors
Registered User
 
sharpmotors's Avatar
 
Join Date: Nov 2009
Location: bridgeport,ct
Posts: 63
Re: 1985 k20 rear brake question

thanks guys tonite i am taking it out.
sharpmotors is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:44 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com