Well... I had death wobble above 20mph when I hit bumps... then I replaced my u joints, cleaned and re-greased my driveshaft, and greased all of my front end fittings and replaced my pinion seal. and the wobble went away. Maybe it was something else I did?

It had to have been. Drive shaft u-joints have nothing to do with front end suspension.

Put a new stabilizer on (not a real solution I know) and a different set of control arms on last night. Will report back

If that doesn't fix the issue I'd go to ball joints and unit bearings.

Have you laid under it and did the steering back forth deal yet?

I'll give you 500 dollars for it right now.

If that doesn't do it it's gotta be ball joints.
I haven't watched it move as its turning buy pretty much everything under there is new other than the gear box.

Ball joints or castor. I'd measure the castor before I spent 200 bucks on ball joints.

Jack the Jeep up and check for play on the front wheels.

How do you measure castor? And how do I adjust it?

What's wired is I've had 2 other jeeps with 3 inch lifts on stock arms and steering..no wobble. Could my shocks being maxed out and probably worn out affect the wobble?

it prolly doesnt have anything to do with it but just a idea, your other 2 jeeps had hp 30s and this one has a lowpinion

Wouldn't see why that would matter

The control arms/stabilizer seemed to reduce it to just a shimmy in the wheel at around 60.

Still have some DW..not near as often but it happened on my way home from work. Still happens over 35 ONLY when I hit a bump.

The xj I have was a mudder for a guys son and I bought it to mud and daily drive and when doing 50 and hit small bump I have a deadly wobble and found out I missing front sway bar put new in and fixed my problem

no sway bar, no death wobble here.

Haven't had a sway bar in my last 2 xjs with no issues