To find out how much oil *your* F250 needs, you should:
* Check your owner's manual: This is the most reliable source of information. The manual will specify the capacity for your particular truck's rear axle.
* Look for a sticker on the differential: Sometimes there's a sticker on the differential housing that indicates the capacity.
* Consult a Ford parts website: Using your VIN, you can often find the specifications for your truck's rear axle.
* Contact a Ford dealership or qualified mechanic: They can tell you the correct capacity based on your truck's information.
Do not guess. Using the wrong amount of gear oil can damage your rear axle.
