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Old 04-20-2024, 09:37 PM   #8
Old 403
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Join Date: Dec 2009
Location: Sask. Canada
Posts: 5
Re: Hydroboost on 81

Quote:
Originally Posted by mongocanfly View Post
"My parking brake is non operational due to a damaged cable"

That's why you can't adj the rear shoes then
No, the parking brake has nothing to do with the self adjusting feature. This from a veteran heavy duty mechanic and a GM partsman. It turned out to be the master cylinder. New cylinder installed and its back to normal four wheel braking.
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