B4000 Regular Cab 4WD V6-4.0L OHV (1997)
Fluid - Differential: Testing and Inspection
Front
1. Remove the oil supply port plug.
NOTE: Place the vehicle on a flat, level surface.
2. The oil level should be 6.35 - 14.28 mm (0.25 - 0.56 inch) below the oil supply port.
3. If the level is below the necessary amount, add oil of the specified type.
4. Install the oil supply port plug and tighten to 21 - 40 Nm (15 - 30 ft. lbs.).
