I'm in the middle of a front end overhaul. I had to Chang the lower control arm shafts because the bushings were damn near non existent. By the time I got to them they had grooves warn in pretty deep. The New parts are in but as I installed the little locking nuts on the back one stretched it's stud and now won't tighten. Has anyone tried to knock these studs out before? I just want to know what I'm getting in to.