Re: Reply #21, the pic of the final drive splines... OMG, those things look awesome for the mileage. Heck, they look awesome - Period. As far as the "rust" goes on those splines, the OE lubricant was Staburags NBU 30 PTM. Goes on white, pasty and sweet smelling (don't smell it btw), but in time it turns brown. It's my guess that is what you were seeing. Bike looks really good man. What's the tank look like? I hope for your case, the conditions of the splines serve as a good representation of the rest of the bike's innards.