I have a 07 Jk i installed a new rockkrawler lift kit 4.5in xfactor to replace my old lift that was worn out and had death wobble after checking all my steering components found that the ball joints were loose and trackbar joint on frame side was shot so i got synergy tie rod and ball joints and the lift kit came with new track bar and drag link in the same time i went and got new wheel bearings and replaced them given that they might also cause death wobble installed the lift with new falcon 3.3 shocks got the 000 grease from RK and greased everything took it to an alignment shop got it aligned and everything was great for 2 weeks (with no steering stabilizer) then started to feel like it's loose and when ever I'm on a highway it felt loose loke it want's to be all over the place and i had to always turn left then right no left right.... got home went back over all the nuts and bolts checked everything nothing was loose i was like confused kep driving it took it to another alignment shop everything looked alright kept looking trying to find what could be the problem why it feels loose couldn't find anything after a couple month the death wobble was back but it was weird like when i hit a pothole going 50 it starts wobbling but if i hold the steering wheel tight the wobble stops without even stopping or slowing down a couple weeks ago i noticed the trackbar bar had a little play in it i posted this problem on the rockkrawler thread and they told it's not much of a movement normal i just can't find what my problem is I installed a steering stabilizer on firmed up everything stopped the death wobble which it's supposed to do hide the problem but the jeep still wonders maybe less but definitely not safe like if I'm going 70 and there's an imperfection in the read where it's like at angle and then straightens back out the jeep will turn even if im still holding the steering wheel straight i will have to turn to the other side until the road is straight again the go back to center like if anyone knows any other part that could cause deathwobble or wander that i don't know of please let me know i really am out of ideas can't think of anything else that could cause this problem and i changed all the parts i could think of i don't know nothing anymore please help

And here's a video to the trackbar if you want to look at it
https://youtu.be/XJfZiOK9fbY

 

You know my thoughts on TB, so I'll just observe for now. Given it's age, probably can't completely rule out a steering box issue from the equation either. There have been a couple recent threads where steering box appeared to be an issue on an older jeep.

 

I did try a friends one it did firm things a bit more but still wonders i bought a new one but still waiting on it my problem is i don't live in the state but i buy all my stuff from there and when i go for holidays i bring the parts back with or if i know someone coming i ask him to bring me the parts cause shipping over to where I'm at will cost a lot like more than double the price of the part

 

Y, I always forget the additional obstacles some have to muddle through living internationally.

 

Yeah that's my biggest problem with parts is i have to wait a while to get them

 

If it feels like a bobble head then I would look to hub and bearings... Wavy road starts a process that continues and makes control harder. If it's mainly on potholes, then I would look to ball joints. I put in Dynatracs, which are wicked expensive, and never looked back. If you have a lot of play in the top of your steering, I would look to steering box. Some play is normal, but if you feel like you are always overcompensating for a bump in road... that may be the problem. I went with a big bore. With my 37s, it's never going to be perfect... but is much, much better than stock.

 

I did replace the bearings with oe ones for no reason just because and did install new ball joints cause one felt a little loose and yes I'm always overcompensating for bumps and imperfections in the road but i don't feel like there is any play in the steering wheel it self no dead spot i turn it does turn but my biggest problem is when ever there is some sort of wave in the road or it's not straight it's angled to a certain side and then straightens out the jeep will pull hard to the side where the road is angled given that all the components have a max of 3k to 4k miles

 

Just to maybe fill in some more info for diagnostics:

I think somewhere in that big wall of text I saw a few trips to different alignment shops? Post the specs.

4.5" lift, right? Which new steering components are installed? (I think trackbar and draglink were mentioned? Flipped or stock position? Raised bracket from axle or dropped from the frame, and/or drop pitman?) If you get a chance, snap a quick pic showing the entire trackbar and draglink in the same pic. (so we can see bolt hole to bolt hole on both bars at the same time...)

 

Did we see what tires you have!! Sometimes flat tread tires are a pain to steer with as they follow road contours.

 

Flipped draglink with a raised trackbar bracket, trackbar, ball joints, tierod, for the specs of the alignment all I know is that the toe was in the green area and the caster was set to the specs that RK provides in the booklet that's all I know cause they don't provide you with a paper showing the specs