Hey guys, i have grinding/clicking sound coming from the left front wheel on my '95 GMC Sierra 4x4. When in 2WD it sounds like something is intermittently grinding while I'm driving, about every 3-5 seconds. And at highway speeds the grinding is more noticeable, bumps also seem to intensify the grinding as well. When in 4WD, the grinding is much louder with a bit of clicking as well. May even be some popping in there as well. Any ideas what could be causing this..?
