I get a knock as though something is binding, have put the car up on jacks, removed the wheels and checked things out but don't see any obvious problems . The steering is fine in normal driving, no noise, roughness, etc....the noise occurs only while backing out of a driveway. I'm hoping someone here might have some ideas...the car is a 2000 GT 5 sp w/ 60K and is 100% stock....TIA