Bob,

The link you posted...

http://www.4x4wire.com/isuzu/tech/manualhubs/

says that there is a lot less wear on the CV joints with the manual hubs unlocked. This is because the front wheels aren't being powered by the front axles, right?? So, if I understand...

the CV joints are still turning and meshing together, but because they are disconnected from the tires, there is less strain on them. Is that right??
And doing this has no ill effect on the TOD computer??

Thanks for the info and the patience,
I'm still new to the offroading thing,
Brian