This picture doesn't do this justice. The drivers side must have been left locked and drove on for thousands of miles.
To remove these, there are "c" clips on the inner side of the joint caps that need to be blasted
out before trying to press or" gently" hammer them out of the shafts.
Oh the humanity! The little needle bearings should be 10 fold for
2 u joints. You can see that 1 race out of 8 is shiny like they should be.
There are rings of powdered (pulverized) bearings that came from the inside of the caps.
Check everything on a used Jeep.. don't assume the owner knew what they were doing!