I don't know why the guy in that video couldn't get a wrench on the lower control arm ball joint nut. Just use a long 24mm wrench and it's pretty easy to break loose. Might need a little penetrating oil if it's rusted on, but you shouldn't. Use a little force and that nut is pretty easy to break loose and remove for clearance. You're not going to get a socket on there, but a wrench is no problem.