You might also want to look at the pitman arm and sector shaft to make sure the splines aren't chewed up. It the splines have play in them you will have issues like you described, but a mechanic may not notice that in an inspection since the nut that holds it on would hold it tight enough to keep it from moving while on the hoist.
If you can read this, thank a teacher. If you can read it while pooping, thank Bill Gates!
"A girls butt hole is like a 9 volt battery. You know its wrong, but eventually you put your tongue on it."