F-450 and F550 Axle Maintenance

F-450 and F550 Axle Maintenance

Change rear axle fluid every 100,000 miles (160,000 kilometers) under normal driving conditions on all commercial applications. For trucks operated at or near maximum Gross Vehicle Weights, the rear axle fluid should be changed every 50,000 miles (80,000 kilometers). In addition, this 50,000 mile (80,000 kilometer) schedule should be observed when the vehicles are operated under the special operating conditions, where noted.