When you front end guy did the 'wobble' test, was it top to bottom or left to right?
Like another said, if kingpins are replaced sometimes when they are 'overly worn' they'll damage the axle, to repair the axle you shrink it and ream to size. You don't 'bush it' although that sounds like the solution. I've done several.

A shop is where you wash your hands before you pee.