Chevrolet: c 1500 brakes, rear end, brakes

Question
On my truck i have the drivers side rear brake that keeps locking up when i back up i have replaced the springs and it still locks up so i was wandering if it could be in the rear-end or the self adjuster in that brake thanks

Answer
Aaron :  Hi  if you have self. adj. in there  toss it and get a new one , it must be worn out I would get the kit for it and turn it into  manual adj. if you still have trouble, it should  be fine if you get a new adj. assembly. You can also try bleeding that side,  BUT-  prior to replacing the self. adj. is the rear cyld.  on that side working ok or is it locking up?.