I'm installing all new brakes front and rear and on the first side, first wheel...I decided to do something dumb and pull the shield thats behind the front rotor off to clean it up. Of the 3 bolts that hold it down one decided to be a pain and snapped while trying to remove it. So I get my drill bit set out and start drilling a pilot whole for an easy out...get it just about where I want to go up to the next size and snap... the hardened drill bit breaks off inside the bolt. Now I cant drill past the end of that bit. question - how important is that shield? if I run without it what damage might happen? needless to say I'm not interested in pulling the damn spindle to have the bolt hole drilled out and tapped...or replace the spindle.