Do 52\" rear 6\" lift springs really measure 52\"? I bought some rear springs for my blazer and the guy said that they are 52" springs. Well I finally got to put them on last weekend and I had to stretch the springs out to put them on. when I put weight on the springs the shackle goes up hitting the tailpipe instead of going back. They measure 49" center of one eye to center of the other. Here are some pictures to help with your thoughts.