Do you feel the clunk?
I know that the front sway bar can actually move to the left or right of center, and when the wheels are turned, and you hit a bump, or grade just right you'll hear a clunk, or a squeak sound.
One way to check is to remove the front wheel(s) and look around the sway bar link/upper cross member/lower cross member area, see if you see any shiny metal surfaces which would indicate rubbing. Nothing should be shiny on the cars underside..
Besides that, it could be a strut, or you may have a loose connection point in your power steering rack.
Good luck!
