You would need to pull it apart to see for sure. The shaft has roller balls that run in a groove inside a cage, the cage is what runs on the sector. Any one of the three can be bad or none of them, it depends on how it was maintained.
The sector bushings are the main wear items as they take the most load. The lower bearing on the worm shaft is also a wear item, its outer race is part of the adjusting nut on the bottom so check it close.
Joe
Last edited by Joe H; 07/08/2009 11:00 PM.
