I had a return spring brake on a rear drum brake. I ordered two replacement springs, which is an after market spring that everyone seems to carry. For the life of me, I could not get the springs to stay connected to the shows. Every time I got a spring on, the stretched tension would cause the spring hooks to bend out and pot loose. I finally installed the one original spring I had (to see if I was doing something wrong) and it went on easy and no problems. I wonder if other have had problems with these.