I think I would call the sellor or the manufactorur for the "pin" information..
I never have seen one with pins in it.. All I have ever seen are the stock ones that have more movement in them than you are saying that one has.. I'd be pulling it out and pulling the pins just to see what I ahd..
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />

professional bovine relocation specialist