I am currently having the same problem with my D2, I have replaced front driveshaft, all sway bar end links (not that they would cause the shake, but..), upper and lower ball joints, also put new EBC rotors and pads up front. Still no fix. I have had my tired balanced as well, the tire store didnt tell me they were good but I think they would have told me if they noticed a problem. Tires are only a year and a half old with around 6k miles. If you come up with a solution please share, I could have something similar going on.

 

How does the rear A-arm ball joint look?

 

 

Might you have crossed a practitioner in the voodoo arts?

 

Hahaha, this comment made me laugh so hard

 

 

Still, you might want to mix some jimson weed with sulfur and honey in a glass and rub some against a black cat before slowly sipping the remainder, whilst sitting in your truck.
(Note: rub the cat while outside of your truck, no cat rubbin' inside the truck. Leave cat outside!)

 

 

I was going to say check the wheel bearings. I took mine and all they did was rotate the tires. The vibration was worse so I went straight to another shop and the wheel bearing was so loose the tire was about to fall off.