What am I missing here? Helped a friend with his 73 blazer tonight. Has the
12 bolt rear axle. 6 months ago he had the brakes done by a shop and they have worked fine. Then suddenly the drivers rear wheel locked up. It is definatly the brake that is locking the wheel because without the drums on the axle spins freely. So now it has new brake shoes, new drums, springs are 6 months old, and everything is cleaned. What seems to be happening is that the self adjuster just keeps getting tighter and tighter every time you back up until the brakes are so tight the wheel will not turn. Also I should add that the wheel locks tight when moving forward, but when spun backwards it moves ok. What would cause a drum brake to lock like that?- posted
19 years ago