Easy to do with a hydraulic press - not necessary because these things are especially stiff / hard to shift but because of the controllability
Note the dangerous use of sockets! Don´t damage tools when doing this - if your needle moves more than a blip on your hydraulic gauge then you´re doing it wrong - virtually zero force is needed...
Shove the UJ cross one way (after removing circlips!)
Then back the other way =>
Pick out the seal and wriggle the needle bearings out of the caps
Then use a hammer and punch to knock the caps out of the way so you can remove the UJ crosses
Next up a good degrease...
...and some paint