can someone try to diagnosis this problem? i have recently noticed a grinding/clunking noise when i turn. it is much worse when making lefts and is especially nasty when making a left u-turn. i checked the driveshafts and nothing is getting in the way and the boots are fine; however whatever is rubbing might be lifted out of the way when i jack the car up. any suggestions?? could it be a problem with my steering system? thanks.