Remove the drive shaft, if you have an impact gun it will be easier, if not, you will need a QUALITY ratchet due to the stress you will be putting on it. Better yet, use a breaker bar and extend it with a pipe you can slip over it. I use a 1 inch drive ratchet to break the nut free.
Once broken free, it comes off easy. Then tap the yoke out using either a brass hammer of something to that effect. There is a crush sleeve, officially you should replace it every time you remove the yoke. Most do not, if you do not, simply remove the seal, tap the new seal in, then tighten the nut down to the specific torque listed for the nut.
I do not know the torque off hand.
So no it is not a hard job in what is required to get it done, it is a hard job to break the yoke nut free.
BLOCK YOUR WHEELS AND SET THE EMERGENCY BRAKE...