Specifically Jeep Wrangler drum brakes. Yesterday i pulled the drums off to inspect the shoes, i didnt touch anything other than the drum itself to remove it. I put the drums and the wheels back on the jeep and everything seemed fine on the test drive. Today i drove the jeep about 6 miles and the drums have tightened up and are HOT. The smell of burning brakes and it being hard to drive was my first clue. What caused this and will just backing the adjustment gear back a little solve this problem? There are no previous problems with the rear drums either.