I agree with Ted that the stock anti-roll bar mounts work just fine, even great. I've never had any issues, not even a scratch on the bottom of the studs. BUT, though it's very close to the wheel, there are conceivable situations where the wheel would miss an obstruction and the lower mount would hit. It's very unlikely but not impossible. Still, no plans to alter mine.
Broken mounting studs? My money is not on impact but over-tightening of mounting nut.