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**HO455** · 03-24-2022, 02:55 PM

I would pull each drum off and inspect the brakes. You may have more than one issue.

Look for anything broken or bent, uneven wear on the shoes, oil on the shoes, glazed drums, grooved drums, drums that are exceeded the stated wear diameter or rusted drums. You should be able to move the slave cylinder pistons into the cylinder slightly by prying with a screwdriver to check for a frozen piston.

It may be that new shoes and having the drums turned followed by a proper bedding in of the new shoes may solve your issue.

03-24-2022, 02:55 PM	#8
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 11,617	Re: 1969 gmc I would pull each drum off and inspect the brakes. You may have more than one issue. Look for anything broken or bent, uneven wear on the shoes, oil on the shoes, glazed drums, grooved drums, drums that are exceeded the stated wear diameter or rusted drums. You should be able to move the slave cylinder pistons into the cylinder slightly by prying with a screwdriver to check for a frozen piston. It may be that new shoes and having the drums turned followed by a proper bedding in of the new shoes may solve your issue. __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377