[JohnJ@RideTech]

A good set of shocks would make a world of difference in the way your truck rides and you shouldn't have to make any other drastic changes.
A set of shocks with some rebound adjustment like our HQ pieces will allow you to slow down the rebound travel and drastically reduce or eliminate that "wobble" that you are experiencing now.
If you can get me a mount to mount measurement at ride height, I will see what I can come up with for you.