Ok.....putting new pads in my rear brake that, like the rest of my bike, has been in pieces the last couple of months. I was sure I could remember how this stuff goes back together......WRONG! I am used to brembo so one of these 4 metal "retainers" or whatever they are called is giving me a problem. I got the two that go on the sides of the pads and the smallest one that bottom of the pads sit in.....but I just can't figure out how this last larger one goes. I have it in the only way I could figure out, but I don't see it's purpose and it looks sketchy. Thanks in advance. 2011 EC 300