Brake Problems!

[blue 72 gmc 4x4]

A buddy of mine has a 1970 2wd chevy with drum brakes all around. whenever he stomps on the pedal it pulls really bad to the left. I bled the brakes and adjusted them and they worked great...didnt pull at all. but then a couple of weeks go by and they are pulling to the left again really bad. what can I do to fix this??!!

Thanks, Zack

[cparman]

First, they might just need to be readjusted. Sometimes after replacing the brakes and allowing them to break in, they will need to be readjusted. Secondly, you might have a collapsed front brake hose. One test would be to get the front wheels up in the air, pump the brakes a couple of times, and hold them down. See if both drums will not move. If the right moves, and the left does not, you may have a bad right brake hose??? If you replaced the brake shoes, wheel cylinders, and turned the drums, I would think this is where you need to look.