I'm installing a set of slammerZ's. First fork went fine and is back in the bike. On the second fork, the 8mm allen bolt on the bottom is just spinning. It won't break loose from the internals. The internals spin also when I try to remove the bolt. Any insight on how to get that bolt out. The instructions say an impact might be needed. I don't have one and was hoping someone here had gotten one out in this situation without and impact. Bike is a 2013 busa. Thanks, Bob.