I have an 07 1500 with about 60,000 miles on it. I am hearing a slight girnd at what sounds like the front driver side wheel when i turn. In 4WD the grinding is much worse and bring the truck to a stop? Need serious help! winter is coming!!!

 

http://www.4x4abc.com/4WD101/def_turnpart.html

 

The grinding continues even after coming to a stop.... Stops only after disengaging 4wd
Also there is a less noticable grinding sound when turning and coasting at low speeds in 2wd

 

That does not sound good at all-- I would take it into a shop and have them diagnose. Sounds transfer case related.