Upper and Lower Ball Joint Replacement

40 year old Chicago Pneumatic 1/2" drive that was used on the job for 10 years. Never been serviced. Guess they don't make good ones anymore. Original joints no problem on 55 year old A body.
That's exactly what I have, lol. I bought it when I was 18 so it's gonna be 50 years old soon. Great gun for sure!