I have a 69 FB that I noticed before I put her away for winter storage that the rear Pass. brake drum was locking up. I did not really get into finding out why.. I did adjust them a few times and it did not seem to help. I noticed the paint on the drum was burning off and one of the shoes was cracked. I did not feel like working on it in the freezing cold weather. Now that it is time to enjoy the mustang again I need to figure out what is going on. All the shoes and hardware including the wheel cylinders were replaced about 7 years ago. Seems like a long time, but considering the car is not a daily driver and is stored in the winter everything appears to be in good shape. The drums are old and could stand to be replaced. I am thinking it might be a bad wheel cylinder. What do you guys think? Is there a good way to test this? Any suggestions on how to track down the problem. I don't want to just throw a bunch of money at replacing parts that don't need replaced. I don't think it is the porp. valve as my brake warning light is not on. Like it had been in the past before I replaced the valve.. Thanks for any hints on what to look at!