Howdy,
It seems to me that locking hubs on a 4WD just slightly lowers the amount of rotating mass, and subsequent wear on equipment (though there is no load) between the hubs and the differential.
So it's mostly and efficiency gain, right?
This is what prompted that:
Though locking hubs are particularly made to engage or disengage the front wheels from the front axle shafts, the idea was still to keep the parts that are not needed in 2WD mode from rotating. This is essential in reducing mechanical drag and saving gas. During bad weather, it is also recommended to leave the hubs locked to allow you to shift in and out of 4WD whenever the need arises. The drive lines will synchronize if the locking hubs are left engaged. Keep in mind that leaving your hubs locked will cause no damage or harm to your vehicle and will not even influence its handling. The good news about it is that you don't have to deal with the hassle-free stop just to shift into 4WD.
from: http://4wheelonline.com
For the T100, I would guess that locking hubs are a small upgrade compared to a locking differential in the rear, which would have significant improvements in off road capability, right?
I have enthusiasm, time, and capability, but I'm pretty skimpy on practical knowledge, thanks.
