Front Bearing
WARNING: This page is about a different car, the 2006 Subaru Outback and 2006 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
Check the front bearing to make sure there are no damage or rust.
Also, insert the shaft into front bearing to make sure the front bearing rotates smoothly when the shaft is rotated.
Replace the front bearing if faulty.