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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-24-2007, 10:38 PM   #1
67sleeper
Registered User
 
67sleeper's Avatar
 
Join Date: Jan 2007
Location: N.W. Arkansas
Posts: 7
67 drum woes

I have a 1967 1/2 ton with drums all the way around. We put a power brake setup from a 1972 chevy on it. Everything worked great. I took it to my uncle in law's shop to have break shoes put on it (I know do it yourself and you won't have these issues, I got lazy ok) and he took it upon himself to fix my now faulty booster with a 1970. Well this caused all kinds of issues including the brake rod was too short and the vehicle was pulling to right severely. We fixed the rod issue buy welding two together. What I am wondering is could that 1970 booster actually cause the pulling or is it just a coincidence? I have replaced all the wheel cylinders, brake shoes, brake lines up front, master cylinder, and took off the distribution block/proportioning valve to check for any stoppages. I don't really want to spend the money on a new booster since this one cost 100 plus and I will have to buy the rod too but, I don't really see what else could be causing this. Does anyone have any ideas? Any help would be appreciated, thanks.
67sleeper is offline   Reply With Quote
Old 08-24-2007, 11:27 PM   #2
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: 67 drum woes

thebooster will do nothing from left to right... odds are, it was the brake job.
My guess without looking, whomever installed the shoes, put the 2 long shoes on one side, the the 2 short ones on the other side, instead of long/short on both sides.
Longhorn Man is offline   Reply With Quote
Old 08-24-2007, 11:33 PM   #3
mjrmn
'67 K10 Work In Process
 
mjrmn's Avatar
 
Join Date: Feb 2004
Location: Delano MN
Posts: 163
Re: 67 drum woes

I agree with Longhorn
I have seen this many times with drum breaks. Makes stopping an adventure
mjrmn is offline   Reply With Quote
Old 08-25-2007, 12:03 AM   #4
67sleeper
Registered User
 
67sleeper's Avatar
 
Join Date: Jan 2007
Location: N.W. Arkansas
Posts: 7
Re: 67 drum woes

Thanks for the advice guys, I think you got me goin in the right direction. I checked and it doesn't have 2 shorts on one side and 2 longs on the other but it does have them reversed on the right side. I will change them tommorrow and hope it fixes my problem. Thanks again.
67sleeper is offline   Reply With Quote
Old 08-25-2007, 07:52 AM   #5
72armyswbtruck
Registered User
 
72armyswbtruck's Avatar
 
Join Date: Feb 2004
Location: Idaho
Posts: 4,034
Re: 67 drum woes

First and second gotta love the help on this board
__________________
"Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"
72armyswbtruck is offline   Reply With Quote
Old 08-25-2007, 10:27 AM   #6
68gmsee
Active Member
 
68gmsee's Avatar
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
Re: 67 drum woes

Here's what I've experienced on my 2 drum brake trucks.

Depending on the quality of the new brakes and condition of the drums themselves, I've had to readjust several times after a brake job to get them right. And even then, they still tend to pull slightly to one side or the other.

I'll drive them for some time and then come back and readjust. I've never been able to get them perfect. Close, but not perfect...

The only way you can get them pretty close after a new brake job is to take it in to a brake specialist shop and have them redo the drums and then the shoes to match the curvature.
68gmsee is offline   Reply With Quote
Old 08-25-2007, 11:04 AM   #7
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: 67 drum woes

he found the problem, they were installed wrong
there should be no reason you can't adjust them properly if your components are good.
Longhorn Man is offline   Reply With Quote
Old 08-26-2007, 12:36 AM   #8
67sleeper
Registered User
 
67sleeper's Avatar
 
Join Date: Jan 2007
Location: N.W. Arkansas
Posts: 7
Re: 67 drum woes

I just wanted to say thanks again for everyone's advice. I have been messing with these brakes for 2 months and never once thought to check to make sure the shoes were installed properly, duh moment. thanks again.
67sleeper is offline   Reply With Quote
Reply

Bookmarks


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 01:19 PM.


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