30000 MI or 48000 KM
LubricateSteering and Suspension
Lubricate the front suspension, kingpin bushings, steering linkage, transmission shift linkage, transfer case shift linkage, parking brake cable guides, rear driveline center splines, front axle propshaft splines and brake pedal springs. Kingpin bushings should not be lubricated unless their temperature is -12 degrees C (10 degrees F) or higher or they could be damaged.
Inspect
Radiator Cooling Fan Motor
If your engine has a thermostatically controlled cooling fan, inspect hoses and ducts for proper hook-up. Be sure the valve works properly.
Heat Shield, Exhaust
Vehicles over 8,500 lbs. GVWR only. Inspect shields and underhood insulation For damage or looseness. Adjust or replace as required.
Brakes and Traction Control
Check brake calipers for freedom of movement.
Replace
Oil Filter, Engine
Or every 3 months, whichever occurs first.
Fuel Filter
Fluid - Differential
3500 HD models with applications requiring extreme overload/trailer towing conditions and high-speed (above 45 mph or 70 km/h) conditions for extended periods of time must have the drive axle fluid changed every 30,000 miles (50,000 km).
Engine Oil
Or every 3 months, whichever occurs first.
Rotate
Tires