Just over an hour if you're in a hurry from a warm engine to sitting on a bench (with some help from a 2nd person). 2 hours by myself. However, plan a day and take your time to mark everything and it will go smoother when you reinstall.
I didn't unhook anything beyond taking off the spring around the rubber and pullin the rubber boot free.The rear wheel and shaftdrive are still in place.The only thing the service manual said was to do what I did above so I assumed that the back of the trans would just pull out of the shaftdrive where it meets the swingarm.