45000 MI or 72000 KM

Check
    Brakes and Traction Control
Adjust
    Valve Clearance
      Except vehicles with hydraulic lifters.
    Idle Speed
Inspect
    Suspension
    Steering
    Fluid - Transfer Case
    Fluid - M/T
    Fluid - A/T
Replace
    Oil Filter, Engine
      Diesel engines only, every 5000 miles.
    Engine Oil
      Diesel engines only, every 5000 miles.
Clean/Repack
    Wheel Bearing
      1984 trucks.