When you re-did your wheel bearings, what torque did you set them?
That could be about enough miles to be a problem again if you followed the FSM to the "T".
Otherwise, I would point to the tires and balancing based on that being the change that brought it about.
I suggest you start reading here:
https://forum.ih8mud.com/threads/how-can-i-figure-out-why-i-have-death-wobble.1267007/
Then do a search in the upper right corner as seen
here: