1. Warm up the oil in the box by driving for at least 15 minutes.
2. Raise the front of the vehicle and place on stands.
3. Get your supplies ready.
4. Turn away a stopper of a control aperture and wipe.
5. Remove the drain plug and drain the oil.
6. Screw the plug to the specified torque.
7. Fill with oil up to the lower edge of the control hole.
8. Replace the check hole plug.
9. Install shield and lower vehicle.