Do-It-Yourself Story

I replaced the rail and the roller. The only difficulty I had was figuring out how to remove the blue clamps on the back wall that held the shelf in place (probably for transit). I used needle nose pliers and to squeeze it and they came right out. Also removing the old rail required that you put a very small flathead screwdriver under a little flange to pop it out. But in general it was a very easy fix.