The FSM used to show a special tool set and using a press with the knuckle off the car. There was a TSB many years ago and a specially designed tool called a Hub Shark that uses a screw press. The main issue can be the lateral link bolt. Sometimes it's easy (like Superoo said) and sometimes its difficult like in this video
A lift and a torch makes this job much easier.
Ah yes, THAT bolt. I did use a breaker bar that's about 20" long. Yes it required some force to get it to turn, the previous owner worked at a ski lodge so it got plenty of salt (most of the bolts are rusty but no rust on the body). Anyway, it was tough but took more time to go into the garage and get the long breaker bar than to get it to turn. From there I used the impact wrench which did nothing before the breaker bar. A torch is on my wish list. The video was about 45 minutes too long for me so with the new bolt, I'm guessing he cut the old one. Over the years the best thing I ever used on rusty bolts is heat. Get it slightly red and turn it when it's still hot and they go pretty easy. Forget the penetrating oils like PB blaster unless heat is not an option. Even then I've never had any luck with penetrating oil. When the other side goes, now I know to get a new bolt just in case, but with no torch I go to the sawz-all.