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-   -   drum brake drags after going in reverse ? (https://67-72chevytrucks.com/vboard/showthread.php?t=826026)

blazer2007 09-20-2021 10:51 AM

drum brake drags after going in reverse ?
 
When I back out of driveway and go forward the brakes will grab real fast with little brake pressure and then will go back to normal after a couple of taps on the brakes within a block or two. It only does this when close to freezing with moisture in the air. It never does it in the summer just in the fall when the weather gets colder in the mornings. I took drum off but don,t see anything out of the ordinary . Thinking the wheel adjuster is getting stuck maybe or wheel cylinder . Still some meat on the shoes. Drum sits nice on the brake shoes. Other than this the brakes work fine.

kwmech 09-21-2021 11:51 AM

Re: drum brake drags after going in reverse ?
 
Post up a picture of the offending shoes with the drum off, you may have the shoes on backwards

blazer2007 09-21-2021 09:19 PM

Re: drum brake drags after going in reverse ?
 
I will check that. That would be embarrassing.

mongocanfly 09-22-2021 01:57 AM

Re: drum brake drags after going in reverse ?
 
it happens though..

blazer2007 09-22-2021 10:23 AM

Re: drum brake drags after going in reverse ?
 
2 Attachment(s)
shoe looks correct

mongocanfly 09-22-2021 03:53 PM

Re: drum brake drags after going in reverse ?
 
Yep..long shoe in back

kwmech 09-24-2021 12:59 AM

Re: drum brake drags after going in reverse ?
 
Inside of the drum looking smooth--no lips or ridges? Pull the cup of the wheel cylinder back and see if the cylinder is leaking or maybe only one of the pistons in the cylinder is working or stuck. I was working on a customers 71 3/4 ton last year and got a brand new wheel cylinder from NAPA without the alum puck inside of it. It's like great---now I have to check all these before I install them now.


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