I have and 04 Ram 2500 with a 5.7.  I put a level kit in from tuff country and put 315 70 r17 bfg at's.  I head donw the freeway hit a bump and there goes the death wobble!
Since then I have put a superlift double steering stabilizer and new super lift shocks up front.  I also am running 65 psi in the tires which seems to help but wobble is still there.  I put the maximum amount of caster in and the the toe is set within spec.
I even droppen in a drop pitman arm to see if it changed and that made it worse.  Any help would be great!  

Have you checked your lug nuts, wheel bearings, ball joints, inner/outer tie rods, tire balence, try looking in your door jam and running the recomended tire pressure for your truck, these are all things that could be causing your problem.

Let us know what you find out!  

I looked over the front end over and over.  I work at a jeep dealership and I have checked ball joints upper and lower, wheel bearings, reaplaced a tie rod end tracbar and steering knuckles (What chrysler said to do).  I ran recomended pressure low pressure high pressure different pressure side to side, and it may have changed when it does the wobble but it is still there. I was wondering if maximum set caster isn't enough and longer lower trailing arms would help.  But I am getting tired of spending money on things that don't help. And unfortunately the factory isn't much help with Mods.  Let me know what you think  

Death wobble, or at least on the 94-01 trucks was caused 90% of the time by a loose track bar. The only way I have found to diagnose a failed joint (so far) is to have the truck sitting on the ground like normal, start the engine and have someone rock the steering wheel back and forth. It is almost always the balljoint end connected to the frame that wears out. I can't remember if they changed the design or not on the newer trucks. Secondly I have had it come loose after a drive around the block and forced to tighten it up again. Also when checking this watch all of your steering joints for play. Good luck.  

Seems like you have covered almost everything. Try what daveerald said. Fire the truck up and have somebody work the steering while you watch it for loose joints. Beyond that I am not real sure with out actually looking at it...  

These trac bars don't have the joints ends anymore.  They have a bushing at each end and are tight.  I had the 315 bfg's taken off and 265 70 r 17 put back on the the wobble went away.  Possible problem with to much sidewall flex?  Truck looks silly now.