For a 2003 Ford Expedition, the recommended gear oil for the differential is typically 75W-140 synthetic gear oil, particularly for models with the heavy-duty towing package. If the vehicle has a standard differential, 75W-90 gear oil may also be suitable. Always check the owner's manual or consult with a dealer for specific requirements based on the vehicle's configuration.
Differential oil will work fine dude or even gear box oil.dude
80W90 gear oil.
Usually you fill it to the bottom of the hole.
any gear oil
GL5 75W90 or 80W90 gear oil.
85W90 gear oil.
80-90 Gear oil
if its rear wheel drive then check differential and if it is a front wheel drive car or diferential is fine then a gear in the trannsmission is sheered
Hypoid gear oil 80w90
You will need to call the dealership and give them the tire size,differential gear ratio, and the type of transmission. From that information they can give you the correct gear.
Up to 2002, 80w90 2003 and later 75w90 synthetic
You should only change it, when it goes bad.