I have just developed a "shimmy" in the front end. It feels more like it's in the steering. I looked at the front tires (recommended Pirelli's) and they look like they are wearing forward and cupping instead of regular wear. Could this be due to strut/shocks worn out or do I need to look in a different direction. The car is pulling to the right. I just put brakes on front. The car is a 2000 S-Type.4.0. Just drove the car again and it's more of a "jerking from side to side " than a shimmy. Also, I recently replaced the front hub bearings (complete kit with wheel sensors).