Does anyone have the repair/service manual for a 2005 Yamaha Kodiak 450? Or could help me figure out the prob?

If you have it on your commputer (e-book) or in any other form that can help me it would be greatly appreciated. Thank you. My problem i need to fix is im leaking oil out on my front differential, where the drive shaft goes into it. I think i need new seals but im not positive. k thanks