I seriously doubt that 50 psi is the right tire pressure for anything under an MJ. The sidewall may say that 50 psi is the maximum pressure, but that's not typically the pressure you should run them at.
IMHO death wobble=tire balance. Steering damper is to prevent steering wheel "kick-back" when off-roading. I've experienced death wobble in two Jeeps that had steering dampers, so I am quite certain that the damper will not cure -- or even mask -- death wobble.
Cooper AT3, 48 in front and 42 in rear. Wear is even.
8" wheel.
And the Gooyear Silent Armor before these.........