I have to admit, it is early, but this thread is confusing me.
There are no front hubs as in other systems.
HummerGuy and Odamo are correct, the planatery differential in the transfer case distributes the power to the axles. In normal 4-wheel drive it allows for 40/60 front/rear split. In 4-HI lock, the diff distributes the power to the high/low sleeve.
The E-locker will automatically unlock over 20 mph, and cannot be engaged except in 4-LO. If it engages above that speed, and in 4-HI, there is a problem. If you push the locker button in 4-HI or above 20MPH it will flash but not engage.
I need more coffee...
