Hi gang... Haven`t been here in awhile, cuz, my gmc has been behaving. But, now, i have a problem. I have a 2002, gmc, sierra, 4.8, 4wd. Just noticed a grinding, sound, sounds like it`s coming from the left front. Only makes noise when i make a left turn. In my , ??? Years of experiance, this indicates a wheel bearing. Is my guess correct, or, is there someting else i should, look for.? It has 87,000 miles on it. Good care for it`s life, greased, oil / filter changed regularly, ect. Any suggestions ? Thanks .. This is a super wweb site.