Debated many times ... but I'll say it again: True "Death Wobble" doesn't stop unless the vehicle is brought to a full stop (or near that). Stopping at 30mph isn't death wobble ... it is a vibration or shimmy. And if the damper replacement fixes it, then it wasn't death wobble in the first place.
Now ......... Let the disagreements begin .........
Now ......... Let the disagreements begin .........