Does The Steering Box Need Replaced?

This is where I'm going to get alot of flak. Is it possible to do this with the box in the car? I would have to disconnect the engine/mounts/headers/torsion bar, otherwise. With the links above, it doesn't sound like anything would need pressed out. Thoughts? I'm not trying to skip anything important. If I have to, I will remove it. Of course I want it done right.

Nothing needs pressing out. But as the threads show there are lose needle bearing and you don't want to risk dropping any of them.
Pull it out if you think it needs service. I wouldn't even consider doing it in the car.
You would need to clean the housing out probably anyway.