I was messing with the 5.38's last night for my 12 bolt, and I realized that there is no way the center pin is going in after the ring gear is on. WTF?? Is there a special center pin for this bastard?? Or do I set it all up, then removed the ring gear while it's in there (Pain in ass) and slide the pin in, then reinstall the ring gear?? ARGH!!!!!