54000 MI or 86400 KM

Lubricate
    Suspension
      Lubricate suspension bushings with fittings.
    EFE Valve
    Drive/Propeller Shafts, Bearings and Joints
      Heavy Duty Service Interval.
    Drive/Propeller Shaft
      Lubricate daily if operated in water.
    Clutch Linkage
    Brakes and Traction Control
      Lubricate body actuating mechanisms.
    Body and Frame
      Lubricate body actuating mechanisms.
    Ball Joint
Inspect/Adjust
    Idle Speed
      Propane models only.
    Drive Belt
    Carburetor
      Clean, check and adjust carburator choke shaft, fast idle cam, pivots and vacuum kick when applicable.
Clean
    Crankcase Filter
      Clean/oil.
    Air Filter Element
      Heavy Duty Service Interval.
Check
    Wheels
      Check torque on wheel lugs, steering linkage and spring clip nuts.
    Power Steering Fluid
      Check fluid level.
    Ignition Timing
    Ignition Rotor
    Ignition Cable
    Idle Speed
    Fluid - Differential
      Check fluid level.
    Fluid - A/T
      Light Duty Cycle
    Engine
      Heavy Duty Service Interval.
    Distributor Cap
    Clutch Fluid
      Check fluid level.
    Brake Master Cylinder
      Check fluid level.
    Brake Fluid
      Check fluid level.
    Air Injection
      Check system.
Adjust
    Band, A/T
      Light Duty Service
Inspect
    Wheel Cylinder
    Wheel Bearing
      Models with Spicer & Rockwell differential only. Repack as required. Repack all models whenever axles era removed or brakes are serviced.
    Universal Joint, Drive/Propeller Shaft
      Inspect and lubricate with grease fittings only.
    Positive Crankcase Ventilation Valve
      Heavy Duty Service Interval.
    Hoses
      Inspect emission and fuel hoses.
    Heating and Air Conditioning
    Exhaust System
    Cooling System
      Service as required.
    Brake Shoe
    Brake Pad
    Brake Hose/Line
    Air Injection Manifold
      Heavy Duty Service Interval.
    Air Injection
      Heavy Duty Service Interval.
Replace
    Spark Plug
      Heavy Duty Service Interval.
    Oil Filter, Engine
    Fluid Filter - A/T
      Light Duty Service
    Fluid - M/T
    Fluid - A/T
      Light Duty Service
    Engine Oil
      If your mileage is less the 7,500 miles a yearly, replace the engine oil filter at each oil change.