My rear brake was locking up, one side only when I used them. I expected a leaky cylinder, but when got apart was only the brake material had come unglued from shoe. Was recent change, lots of meat left on shoe, just came off. My shop rivets them to prevent that from happening he said. Two new re-lines, was $28.50 each, plus UPS to City. Sent Monday, he got Tues, did them, I got back on Wed!! He said "sorry for being too slow" when I called to tell him they were coming! HA! What a great shop!