Have another buddy to help you put the drive shaft back in. I did it last weekend by myself and I found it hard to hold the track up and slide the shaft in. Sprockets were catching the track...track was heavy.. Would have been a lot easier with another set of hands...
Also, Tighten everything on the chaincase side before you tighten the set screws on the clutch side bearing. I put the bearing in the carier and tightened eveything down, but left the set screws loose. Then I put the chaincase together. At least then you know the axel is pulled all the way to that side where it should be. Then I tightened the set screws.