Lower Ball joints
I'm speaking as a professional auto technician that doesn't want to lose his business if someone gets into an accident because I screw up a ball joint installation.
The ONLY way to fix it is to replace the lower control arms. Use any other method, with the possible exception of the rumored oversize ball joints, and your necks in a noose if something fails. (I've heard about the oversize ball joints but never actually seen any that fit right.)