So I went ahead and loosened the bolts. Pulled it back a little and then pushed back in to see if it loosened it to where I could turn the gear and slide it back on the key. No luck, I can't get it to turn or slide any further back on the shaft. I don't have the tool the rave talks about but I tried to use a short hand screw driver to slide it around and that didn't work. It still looks like it will rub the gasket between the gear and viscous fan. Any help is appreciated. I've had this thing apart for too long and would actually like to drive it before Christmas, lol.