My 2000 LC has several noises coming from the right front. The worst is a grinding noise that occurs when I back out of my driveway in the morning. Does not occur unless I turn hard right while backing up. I don't hear it for the rest of the day, but it has gotten progressively worse over the last 2 weeks. Also, at highway speeds, I hear a swoosh (kind of like compressed air) from the right front when going over bumps in the highway and the shocks compress. About a week ago, it sounded bad enough to cause me to pull over on the interstate and check to make sure I did not have a flat tire. Any thoughts?