My seemingly never ending death wobble journey

Hi, it's been a week since I had final repairs done on this issue.

Happy to say, I haven't updated because I've been busy driving my Jeep!!! ✌️✌️ Have done almost 900 miles since 6/2.

We tried the hubs first. Did not make a difference. We then added more caster, did not make a difference. In the end, we did install the RedHead non-ported gear box and I guess that was the ultimate fix. I still have a shimmy or uneven ride, but zero wobble. The used tires I bought off Facebook have great life left in them but are a little cupped, so I'm almost positive that's my shimmy. I'm gonna run these down and rotate more frequently and then invest in brand new tires.
 
Late to the party but I was going to ask if you swapped the gearbox as this is one of those less common, but notorious issues that people don't think of too often but I have seen more times than I'd care to admit (same as the press-in bushings in the top of the front axle).