rear steer for a bronco crawler?

[tankhunter]

I have a extra hi pinion dana 60 I was thinking about putting it in the rear of my 74 bronco.
It should be very helpful when crawling.
I guess I am looking for some do or don't ideas?
can it be done electrically?
I really don't want to mess with a hyd. system
will the u-joints and stock axles hold up or will that all have to be upgraded?

 

[distended]

This was done on "Monster Garage" a few years back but they used a hydrolic steering setup, set it up like turning breaks if I remember right.
Looks pretty easy actually from what I've seen on the boob tube. I'm sure I'm wrong but maybe not.