From another thread :
Remove wheel
remove the bolts and rubber cover (left side)
remove the nut and torque arm and bushing
remove the layout bolt (left side in front of axle)
pull final drive ass. and drive shaft rearward to remove.
remove drive shaft from gear case by gently turning and pulling shaft.
A few tips :
Make sure the bike is lifted and secure, I use the Sears YELLOW ATV/cycle jack.when you remove the weight from the rear, the front may shift.
The video is a good start on removing the wheel. Get the brake out of the way, remove the spacer, pull the axle all the way out to the left, the wheel is mated to a drive flange, and will not come out yet. move the tire/wheel to the right side and drop down for removal. It is heavy and awkward.
Keep the final drive in an upright position, or 80 wt will leak out the vent tube.
If you have stock exhaust it will be easier to remove the mufflers (only, not the pipes) so you can access the brake stopper bolt (8mm allen). Recommend getting an 8mm allen for a ratchet wrench.
If you do not have the right socket or box end wrench to loosen the axle bolt, and use a big ole crescent, be very careful as it is easy to chip the paint in that area.
And most of all, when you put the wheel back on, make sure you grease the crap out of the final drive to drive flange union.
Feel free to PM me with ??s