About a month ago I bought a 2012 F250 XLT. I just had it inspected (PA laws) and found that the passenger side 4x4 hub is a little hard to turn. There is also alot of corrosion on that side. I will be taking care of the corrosion, but have not had a newer 4x4 hub apart yet and was wondering if anyone has and has pictures or if anyone knows of any diagrams?
I would like to take care of it before winter hits.
Thanks

 

I wuld start with spraying wd-40 externally around turning ***. That might be all you need. Try to stay away from Ford logo, that is went for vacuum.

 

Pull clean and re-grease. Easy to do if your remotely mechanically inclined.

 

Finally got a chance to look it. The internal parts are in great shape. However I know what the problem is. There is alot of corrosion on the housing where the unlock/auto switch is located. I removed that part from the internal parts (very easy to do) and tried spraying PB blaster on both the inside and outside and worked it back and forth. I then flushed it with brake cleaner and re applied more PB blaster. It works a little better, but I am afraid that it will happen again, considering all the paint is missing from this part on the exterior and in between the aluminum and plastic switch.
Do I have to buy the whole hub (found one for $170) or can I just get the switch part?