2002 f250 power stroke. Backing up hill loaded. Heard a snap. Steering wheel was completely turn to the right when snap occurred. Now my 4 wheel drive won't engage. It shows its engaged but nothing. There for awhile it would engage till I gave it gas then would dis engage. What is that I'm missing here?? Any ideas on this ???

 

More then likely broke a hub. Can you manually lock the hubs?

 

No I have know idea how to do that!!
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I have no clue how to do that

 

look in the middle of the rim theres a switch of the middle of the rim by the lugs it will turn and there should be some writing around the hub one should say lock the other should be off do it to both sides of your truck it should lock. hubs arnt cheep i had to change both of mine for 500 a peice but they need to be replaced anyway down the road

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by switch i mean a dial google what a wheel hub looks like this best picture i could find off hand yours will be different but this is the best thing i could find allso look in your owner Manuel it might have a better picture for you
Google Image Result for http://image.8-lug.com/f/tech/0811_8l_trail_sport_wheel_spacers_lifted_ford_supe r_duty/15968216%2Bpheader_460x1000/0811_8l_01%2Btrail_sport_wheel_spacers%2Bwarn_lock ing_hub.jpg

 

Turn it from auto to lock...

 

Ok I looked at it and tried turning. Now mine is a auto locking hub, will that make a difference ?? I don't believe I can turn this. The hub says lock and auto. And if I put a lot of force on it will it break. Thank you for your help
By the way. Im clueless on this

 

It should turn. They get stiff over time because no one knows how to lock a hub anymore.

If you cant turn them you may have to use a wrench. Or pull them off and clean them.

 

Ok. I'll try this in morning after I get off work. I appreciate your help on this.

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So I tried this. I was able to move one but not the other. The one on I was unable to move felt like it was plastic and had no writing on it. So if I pull this hub off can I lock it from the inside of it? I'm confused and lost. Four wheel drive dumb here.

 

The hubs sound old. The factory ones are about 60% plastic.

If you cant turn it try a wrench.

If you pull them all you get is a stub shaft sticking out.

 

One more night of work then I'll tear into some more. I've had them off a few
Months ago when I replaced the wheel bearings. So they should come right off. I did try turning it with a wrench but it wouldn't budge.