Okay here's the thing. When you turn, you're front and rear wheels travel in different paths, and thus different distances. Since the axles are locked going the same speed, it will bind up. Hopefully you're tires will slip before you're driveline breaks. This is why you DO NOT run 4WD on dry pavement, or even wet pavement. Tell your buddy to put his J**p in 4WD in a parking lot and go in a circle. It's nasty. Lots of tire chirping, and possibly tires lifting off the ground. AWD vehicles have a center differential that allows for the needed speed difference between front and wheel axles. Hope this helps......

 

There are lots of sources of information for the novice. Try a book or two or better yet one of the videos available. One quick Google netted thousands of hits. Here are a few ideas:

www.4x4now.com/4wht.htm

www.allthingsjeep.com/riru4whbavi.html

http://www.4wheeldrive.about.com/lib...wnersguide.htm

http://www.home.off-road.com/~plasti...howtodrive.htm

 

Ummm...this thread is a year old.

 

darn newb's bringing up old threads

 

At least he was using the search botton.

 

LOL. Never looked at the dates...
Well, hopefully by now he's running the Rubicon!