Power steering parts to replace

[DnvrJay71]

I've had a ton of play in my steering for a while now and the steering box leaks like crazy at the rag joint...... so I just ordered a psc steering box and have started taking things apart. Are there other things I should be replacing at the same time? I'll definitely replace the rag joint, but is there any need to replace the power steering pump and the pittman arm? the pump seems to be working fine. I just wanted to get your opinions since I'm the guy that just replaced my clutch and didn't know to replace the rear main seal at the same time! lol
any advice would be appreciated.