Hey Guys another question from a newbie. My info says I have a Anti spin differential in this truck. Is this like a limited slip diff or a posi trac rear end never owned a dodge not sure about new lingo. Also how much tounge weight can a class IV hitch reciever hold and pull

Yes, anti-spin is their terminology for limited slip. I proved this the other day when I left 2 long black streaks of rubber with my truck. http://www.dieselplace.com/forum/smileys/Big Smile.gif

The Class IV hitch on my truck says that with a load distributing hitch it can take a maximum of 12,000 lbs towed (1,200 lbs tongue weight) with a load distributing hitch, and 5000/500 with a normal hitch. However, my normal load (trailer + car) is about 7000 lbs and I don't have any problems with that.