So after speaking with Warn (they have been awesome so far), I was informed the style i have now is the new style and they dont use nuts in them. I was told not to leave it loose, that it needs to be tightened down. So I was asked to tighten down on it. If it strips the threads, they will send me a new motor (the side that stripped). My concern is that this is the second one that its happened at the same location. But ill see what happens tonight when i take their advice.