My 2009 V8 LR3 has done around 150k km. It has a permanent 4WD system.
I have no record of prior drivetrain-related maintenance.
If I have to prioritize which diff's fluid to replace first (due to wear and tear), which one should it be?
Should it be:
the rear diff, as it is always transmitting torque to the wheels from the engine, or
the front diff, since it is sees more difference in rotational speed across the two output shafts (induced by steering), or
both, because diff fluid degradation is related to other causes?