front drive saft seal leak

[AC550]

need some help i have noticed today that my front drive shaft seal on my 2009 arctic cat 550 has a slow leak it looks like its coming from the front diff side of the shaft and just wondering if anyone has had to change one out before and have any tips on how to do this as i haven't done this seal before i have done the axle ones and it wasn't too hard and i am curious if i will need to pull the diff out of the machine to change it. any help will be much appreciated

 

[doorfx]

Hardest part is getting the driveshaft apart. After that , three bolts hold the nose cone on. Pretty straight forward. If you don't have a service manual here is a free one www.mymowerparts.com