You've done tires too right?
I have and that's another issue all on its own, as I can't seem to get anyone to balance them correctly. BFG KO2's, 285/75's. They're good up to about 70 then the truck wobbles/shakes - it is in the seats and a little in the steering wheel.
Driveline vibes are under acceleration. The thing is, I have lifted it, rebuilt cv axles and replaced ujoints, with OEM parts, excluding lift of course.