if there nothing wrong with your stock track bar, that's not going to help. A regular single stabilizer won't work either, you need a dual stabilizer or a DDS.
dual shocks play against each other where a single shock has no resistance against it. I forgot the terminaolgy ( static ) I think, where the force of one work agianst the force of the other.
Anyway, I know Dodge had problems with warpped wheels for a while. The never made a recall out of it which they should have. Not sure what year truck you have but, that's a possiblity. It was on the early model trucks.
This is a DDS stabilizer. There's a lot of play in the steering gear box which cause steering wander...this will get rid of that.
http://www.solidsteel.ca/DSS.htm
A steering stabilizer isn't just a shock. It has to be valved to where is has resistance. You can look into a Fox shock stabilizer which is adjustable.
http://thurenfabrication.com/ramstab.html I would also call Don and talk to him about your problem.... he'll have you fixed up in no time.