27000 MI or 43200 KM

Lubricate
    Transfer Case
      Lubricate linkage.
    Suspension
      Lubricate suspension components and other chassis components if applicable..
    Steering
    EFE Valve
       Lubricate heat riser valve.
    Drive/Propeller Shaft
      Lubricate daily if operated in water.
    Brakes and Traction Control
      Lubricate body actuating mechanisms.
    Body and Frame
      Lubricate body actuating mechanisms.
Inspect/Adjust
    Idle Speed
      Propane models only.
    Drive Belt
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 - Transfer Case
      Check fluid level.
    Fluid - M/T
      Check fluid level.
    Fluid - Differential
      Check fluid level.
    Fluid - A/T
      Light Duty Cycle
    Emission Control Systems
      Check vacuum operated emission components.
    Distributor Cap
    Brake Master Cylinder
      Check fluid level.
Inspect
    Wheel Bearing
      Models with Spicer & Rockwell differential only. Repack as required. Repack all models whenever axles era removed or brakes are serviced.
    Hoses
      Inspect emission and fuel hoses.
    Fuel Filler Cap
Replace
    Spark Plug
      Heavy Duty Service Interval.
    Oil Filter, Engine
    Fuel Filter
    Evaporative Canister Filter
      Replace fuel vapor canister.
    Engine Oil
      If your mileage is less the 7,500 miles a yearly, replace the engine oil filter at each oil change.