Use the proper socket on a 3/4" breaker bar.

I just go to Advance Auto and "rent" their loaner ball joint replacement tool kit.

They tell me to return it within 90 days, then they credit the full $150 and change back to my credit card.

No fuss at all, but I did go to Harbor Freight and buy a 3/4 breaker bar for around $12 or so. I've used the breaker bar with a 3/4 to 1/2 adapter afew times, so its paid for itself too.