Quote:
Originally Posted by mdoyle
Just taking out the driveshaft is not the same as a true two wheel drivetrain, you've still got the inertia and combined friction of the balance of the four wheel drive assembly.
You're still turning the transfer case and the front wheels are still driving the half shafts and differential without the driveshaft connected.
I think the mileage savings would be negligible if they existed at all.
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Very true. Doing this will not save that much on fuel. This arises when people ask about a full-time versus part-time 4WD system.