These three parts do not have part numbers on them, but it is clear they are LEGO parts (they have LEGO printed on them). I am trying to track down the set that these belong to, or at least a part number. Any help would be appreciated.
These parts were used for steering in many Technic sets between 1988 and 2001. They are the following parts:
Here's an example of how they can be used together for steering from set 8022:
Here's a listing from bricklink for the rack for which sets it was in.
Part numbers can be used for the other items.