Ok I just drove it around again..

Again to reiterate:
-I take off with little gas and feel almost nothing.
-I take off with moderate gas and I get what I can only describe as a wobble/jump in the driveline on take off from a dead stop.
-If I give it any moderate gas at any time the truck almost wants to jump it feels like. It throws me back in the seat and the front of the truck really wants to lift up it feels like.

I drive at speed and coast no issue, I give it gas I get a jump in the driveline again and the vibe is there.

I try to do a burnout, the rearend hops around like nuts, its been doing that since I noticed this vibe.

The only thing that has changed in my truck since the vibe came was I installed new bilstein HD shocks. Before that the shocks were completely worn out and i didnt notice any vibe afaik.

So I just dunno anymore. I am tearing out my hair over this basically. The mechanic I took it to this past time said the one u joint was ok but tighter than it should be, he said he tweaked it and my bad wobble became a jump in the drive train.

The only other issue I can not test is the tires required alot of weights to balance and they are out of round, but that would cause all of this? I need someone elses tires and rims to test it, I would hate to spend 500 on new tires only to find out its not it as these tires only have 15k on them.

I suppose I could remove the rear tires and if the axle shaft is bent I can physically see the run out and wobble of the rear drums?