I have put my spare tire back on the spare tire rack before, but I don't remember how I did it. I have a 23B and am trying to put the cauder pin back in. It goes in with the straight edge to the metal clamp, doesn't it? Well how do I get the top of the pin to clear the metal clamp that has a curve on it? There is not a lot of room to work with it. anyway, any ideas? Thanks.