30000 MI or 48000 KM

Lubricate
    Body and Frame
Check
    Fluid - Differential
      Check fluid level /check joints / check for leaks
Inspect
    Drive Axles, Bearings and Joints
      Inspect boots and seals for leaks
Replace
    Oil Filter, Engine
    Fuel Filter
    Fluid - A/T
      Fluid and filter
    Engine Oil
    Air Filter Element
Rotate
    Tires
      Check tires and wheels too