I have done a rear seal on my ym2000, but as pointed out it looks as you have one that you have to remove the pto and then must have to get to the inner axle retainers to get the axle out to fix the seal. I think the ym2000 is the simpelist and easiest thing i have ever worked on. Simple design that just lasts and things that are easy and make sense when you go to work on them. The 2000, just has a nut you remove and then hub pulls off then you pull a plate that contains the seal. Simple fix.