The slip yoke slips off. The rubber is hard after all these years and a pain. I recently swiped one of those smaller 1330 yokes for my rig(not realizing it was smaller) and it still fit just fine. Had to get a hybrid ujoint.
As for the bearing, they can be pressed off or cut off. Gotta take your time if you cut it off and don't hit the shaft.
To put it back on you heat the bearing up in an oven to 300* and slide it on, then take a long screwdriver or official drift and tap the inner race in 3 points over and over until it bottoms out. That's how I did my last one and really liked that method.
OR pay a shop $80 to do it for you. That's how much my first one cost me 11 years ago. If you want speed and ease do this.
The biggest issue is to find out why your bearing failed, almost always because the slip yoke is seized up or very stiff. This is key. I had to replace mine 3 times before I finally got a yoke like yours and it slides really nicely for the few inches it needs.