I am just shooting it out there, but steering dampers, or shocks ???? Check, or change them as needed.

 

shocks were replace about 6 months ago and steering dampers are still in good shape

 

not for nothing, but I changed all my front end components (tie rod ends ball joints trac bar) and the wobble was still there. Then I replaced the shocks. Still there. Then I bought 4 new tires. STILL THERE!

I never thought that replacing the 1 year old Rancho steering stabilizer would work. Especially when everyone on this forum said it couldn;t be that. I still had the stock part (it was fine, i just upgraded) so I swapped it back on. DEATH WOBBLE FIXED.

 

which is why I will never buy rancho again.

 

This is why I mentioned this. Iv had steering dampener/shock problems a few times.
Iv never had the death wobble till then. Many aftermarket one do not seem to have enough resistance it seems.
Good to see you got it fixed though