I have a friend who's 97 seville sls has a strange noise coming from the front when he makes a right hand turn. It doesn't sound like a cv joint to me(I guess it could be the beginning of a cv problem), but more like the sound of small rocks in the hubcab rolling around. It just started and someone told me it could be a brake sensor rubbing. Does anyone know anything about this or what could be the problem? Thanks, dv...