Just when I think I am becoing smarter I realize that is untrue. How the heck do you get new covers installed. I have one side off, the nut / bolt are out of retractor mechanism, and I am currently scratching my head on how that dang thing is ever going to slide through that sot. Do I have to get the big clip off, and how do you do that, or a I making this harder than it actually is? Help!