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Old 03-06-2019, 04:20 PM
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Death Wobble...help!

Hello! My first post here...I've been reading a ton but I thought I would just start asking.
2010 JK 94k miles w/ a 2.5 lift



I got the death wobble about 2 months ago and have been trying to fix it since. Just to be clear...it was the death wobble. I was going 50-60 down the highway hit a bump and it felt like the Jeep was going to split it half from the force. Everyone stopped behind me, probably of fear of flying Jeep parts!


I was able to make it to my mechanic. At the time I was running with stock wheels.

This is what has been fixed so far- Outer tie rod x2, adjustable sleeve,tube and lock nut, drag link, pitman tie rod. He did note that the front sway link does not appear to be correct. He thought a different one should have been installed with the lift?? (I bought it with the lift already on it) From doing a lot of reading on this site it sounds like that may have only caused a bump steer and not full out DW. My mechanic was hopeful that it was fixed but not 100% confident.

The Jeep was running fairly well after. 2 weeks later I installed Pro Comp wheels - 18x9. It was running a little more rough after the tires were put on. About 3 weeks late had another DW while going over train tracks. Brought it back in and they checked everything they installed and it was all still tight. The shop that put on the new wheels had the psi up at 38 so my mechanic lowered it to 32 and did an alignment. The alignment was in Jeep specs. He suggested I go back to the tire shop and have the wheels balanced again. I just did that. Only one of the wheels was off by 1.75. The tire shop suggested I get hub rings. I have now ordered those. I'm not sure that those could be a fix though. Any thoughts from anyone for the next step? I've already sunk $1500 into this and am ready to throw in the towel but I love my Jeep too much!! :-) Thank you all so much for helping this newbie!!


Shelly

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Old 03-06-2019, 05:02 PM   #2
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Sorry to hear of your troubles. Welcome to the forum and hopefully you'll get some good info here

I suggest watching the 2 videos below that talk about death wobble and what can potentially cause it. You might find that some of the diagnosis can be done yourself, saving some $$.

Good luck, I'm sure more people will chime in.





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Old 03-06-2019, 08:01 PM   #3
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Old 03-06-2019, 09:06 PM   #4
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Ok, you have real death wobble. (Been there)

Umm literally no where in that description was: inspected the track bar, mounting holes and torqued to spec. Track bar issues are the #1 cause of death wobble on a jk. (Stock brackets are flimsy and easily expanded if not addressed, I am actually dealing with this now)
After that you should look into the ball joints. If all checks out, pull the shafts and look at the joints.
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Old 03-07-2019, 08:40 AM   #5
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The are two things you need to check when this happens. I know they have told you to buy or change all these parts, but based on your mileage and what you described, check you Ball Joints first and then the torque on your track bar bolts, and the condition of the holes on your TB mounts if you find the bolts were loose. Especially check the condition of your bottom ball joints.

Then, if you haven't already, replace the bolts in your track bar with 9/16 shouldered grade 8 bolts and torque them to 130 ft lbs.

If you search all the DW threads on this forum, 95% of them were cured with just those two things.

Your sway bar should be level after a lift but even if its off by a few degrees it won't cause DW.

Bump Steer is when your drag link and track bar are running at different angles, it will move the steering wheel and be annoying but it won't cause DW.

A bad steering stabilizer won't cause DW but until it wears itself out, it will MASK DW in some cases..

If your front end is set up correctly, tires out of balance won't cause DW, if your lug nuts are loose it may feel like it, but that is not DW.

Bad tie rods will not cause DW.

To get DW, basically something that is holding your front axle in place has come loose allowing it to move side to side. There are only two parts holding it in that position, the track bar and the ball joints. In very rare cases it could be control arms but you would notice tracking issues or strange steering inputs first. This is not all inclusive as every Jeep is different, this should point you in the right direction without spending a lot of money chasing the issue.

Hope this helps, I am sure others will chime in with suggestions.......Good Luck on your Project.
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Old 03-07-2019, 08:40 AM   #6
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Like stated above, trackbar is the leading cause of DW.
Loose bolts, or egged out mounting holes.
Check 'em out.
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Old 03-08-2019, 12:23 AM
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Thank you everyone for all the suggestions! I’m going to bring it to a different mechanic that is more familiar with Jeeps and have him look at the track bar first! Thank you so much...now I feel like I have a new starting point!
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Old 03-08-2019, 12:25 AM
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One more question... do you suggest an adjustable track bar or just replacing the current one with something similar? Thanks!!
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Old 03-08-2019, 07:45 AM   #9
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Quote:
Originally Posted by shelly11 View Post
One more question... do you suggest an adjustable track bar or just replacing the current one with something similar? Thanks!!
An adjustable track bar is always a good idea for a lifted Jeep.

When a Jeep is lifted the front axle moves towards the driver's side. On a 2.5" lift the movement is not very much and can usually be tolerated.
An adjustable track bar will center the axle (left to right) like it was from the factory. I've run the Teraflex adjustable track bar as well as the YETI, both are a great product.

Good luck
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Old 03-09-2019, 05:55 AM   #10
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Originally Posted by shelly11 View Post
One more question... do you suggest an adjustable track bar or just replacing the current one with something similar? Thanks!!
The Yeti would be my choice if I thought I needed one.
I run a 2.5" kit and don't feel it's needed.
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Old 03-11-2019, 10:43 AM   #11
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We have a pretty good article on death wobble here that may help you out.

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Old 03-11-2019, 11:59 AM   #12
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One more question... do you suggest an adjustable track bar or just replacing the current one with something similar? Thanks!!
Post pictures of what you have up there already and what kind of driving you plan to do.

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