Got the new springs on and while they seemed stiff in the bounce on the bumper test, they actually rode really smooth. Possibly the nicest lifted truck I've ever rode in!
And my drive line vibes are now gone to the pinion angle be back to where it should be.
Military wrap on both ends
The bottom half leaf is actually a "traction aid", basically a stiffer leaf to prevent axle wrap. Which was the death of the stockers.
Head down ass up stance right now. Hopefully it will settle out, if not I'll adjust the front up to match.