40000 MI or 64000 KM

Inspect
    Fluid - Transfer Case
      Inspect transfer case oil at mileage interval or every 48 months, whichever comes first. Transfer case oil should be changed anytime it has been submerged in water.
    Fluid - M/T
      Inspect fluid level and condition at mileage interval or every 48 months, whichever comes first.
    Fluid - Differential
      Inspect rear differential oil at mileage interval or every 48 months, whichever comes first. Rear differential oil should be changed anytime it has been submerged in water.