Excessive Wheel Kickback or Loose Steering
1. Lash in steering linkage.
2. Air in system.
3. Excessive lash between pitman shaft sector and rack piston.
4. Loose thrust bearing adjustment.
5. Ball nut and worm preload.
6. Steering gear loose on frame.
7. Steering linkage worn.
8. Improper front wheel bearing adjustment.
9. Poppet valve worn.