Grease should not be used in the steering box. If you use grease, you will find that it tends to stick to the walls of the steering box and the steering gear then makes a tunnel in the grease keeping the grease from lubricating the steering gears. I believe the concept of using grease came from the observation that there sometimes was a “grease” fitting placed where the gear oil was poured in. This “grease” fitting was just a quick way to add gear oil through a pressurized system to the gear box used by the service department.
Mike
