Bill, I thought hypoid gear lubes are primarily for drive shafts, not transmissions & wet clutches. Be careful what you put in the transmission, that wet clutch is finicky. The Belray 80 wt Gearsaver has been recommended by Zooke. I was wondering if any other T500 riders out there could recommend other transmission oil types that they use? Bill: is there any harm in loosening and checking that detent bolt you were asking about?