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Old 03-04-2018, 01:32 PM
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DeathWobble from Fox Shocks?! please help

to start it off, I have a 17 JKU, had the mopar 4inch kit installed with aev geo brackets with 200 miles then the following week I had 17 inch method nv wheels with ko2 35 inch tires installed.

I have about 12k on the jeep now and ive discovered I have death wobble. and yes I'm sure its that and not an exaggerated bump steer. ive taken the front end apart ( what ive added with the lift kit) and re-torqued all the bolts to their proper settings, I had the jeep re-Aligned at the local Mavis Tire center. ive had the wheels/tires RoadForce balanced and everything Checks out perfect!

I took it to a 4x4 shop called OK4WD in Stewartsville, NJ and they cant seem to find it other than it possibly being a Shock issue? Balljoints, steering sector shaft all bushings checked out perfectly fine. I took their recommendation and upgraded my front track bar to a JKS unit.

so what can this be? I'm starting to wonder is it a broken Relocation weld bracket? I did notice my steering stabilizer shifted and I corrected that. could it be that my alignment isn't set up for a lifted jeep? the GEO brackets are set at the lowest setting for the said height.


any ideas? please chime in this is becoming a nuisance, I might see if the dealer can check this out but I'm not sure if they can warranty anything due to me installing their mopar lift kit.


thank you

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Old 03-04-2018, 03:22 PM   #2
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Have you checked out your drag link and tie rod? Also consider a steering stabilizer.

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Old 03-04-2018, 06:37 PM
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yes ive checked and torqued them. yes it comes with the fox stabilizer.
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Old 03-04-2018, 06:57 PM   #4
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DeathWobble from Fox Shocks?! please help

Check the toe on the front. The tie rod had lengthened after all the off-road abuse I put it through. It was toed out an inch and a half (stock is something like a 1/16th toed in. Double check that though I am going off memory)


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Old 03-04-2018, 07:35 PM   #5
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Toe in a bit more and see if that corrects the problem.
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Old 03-04-2018, 09:00 PM
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il have a buddie try the toe part, il snap a picture of said alignment and post it up. I must note, highway driving seems to be fine ( a little loose? sometimes) but drives normal until the uneven man hole cover to affect the death wobble.

both shops have said it can be a damaged/faulty Shock. but I'm running the Fox 2.0 with the reservoirs

[IMG][/IMG]

this is the version I'm running, its not leaking or any signs of any oil residue
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Old 03-04-2018, 09:26 PM   #7
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I think shocks can be a contributing factor in the continuation or amplification of death wobble if they're soft enough, but I don't believe they play a role in initiating.

What's your caster set at?

How bad is the wobble? Is it a full blown death wobble or just a small shaking of the wheel for a second or so after a bump?
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Old 03-04-2018, 09:43 PM
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its full blown. ive put 11-12k miles on the shocks and not an issue till recently... caster is set with AEV geo brackets at the lowest bolt setting. its not bump steer, I cant control it when it goes into the wobble.
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Old 03-04-2018, 10:12 PM   #9
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Did you verify the track bar mounting holes were/are not wallowed out?
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Old 03-04-2018, 10:26 PM
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when they installed it they did not mention it but I can always double check that.
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Old 03-04-2018, 10:46 PM   #11
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its full blown. ive put 11-12k miles on the shocks and not an issue till recently... caster is set with AEV geo brackets at the lowest bolt setting. its not bump steer, I cant control it when it goes into the wobble.
I don't like using brackets. I used a trackbar bracket on my rear axle and come to find out, it's still a 1/2 inch out. That kind of leads me to the conclusion they are not very exacting.

You'll have to check caster too. Low caster apparently can do it as well. If I remember correctly something like 4 degrees is factory, but I have found 5 or 6 to be a little more stable (2017 jkur, 3" lift, falcon shocks, 34 inch wheels).
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Old 03-04-2018, 11:13 PM
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I don't like using brackets. I used a trackbar bracket on my rear axle and come to find out, it's still a 1/2 inch out. That kind of leads me to the conclusion they are not very exacting.

You'll have to check caster too. Low caster apparently can do it as well. If I remember correctly something like 4 degrees is factory, but I have found 5 or 6 to be a little more stable (2017 jkur, 3" lift, falcon shocks, 34 inch wheels).
but I don't understand how it was fine for 10k miles zero zero issues until now if it was a caster issue. there are hundreds of people running this kit and geo brackets with zero issues. its just everyones pointing to the shocks which I cant believe its causing a side to side wobble action. I want to say they made my caster close to factory but its not adjustable anymore unless I get adjustment arms correct?
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Old 03-04-2018, 11:33 PM   #13
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Something is worn out in the steering. It can be the ends on the drag link, ends on the tierod, loose trackbar, worn out steering box, loose/ worn out control arms, or ball joints. You said you have ruled out ball joints and the track bar is right. I would look at drag link/tie-rod ends and how much toe you have.


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Old 03-05-2018, 06:28 AM   #14
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is it just the pic, but does that coil spring looks like its sitting funny?
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Old 03-05-2018, 06:36 AM   #15
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i guess it looks like its at full droop
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Old 03-05-2018, 07:01 AM   #16
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Did you verify the track bar mounting holes were/are not wallowed out?
You may also want to just replace the OEM bolts (if thats what you still have) with some better ones pre-emptively. I got these https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 on a recommendation from someone on this board. They gave a much better fit all around and with the threads not making contact with the bushings in the track bar anymore hopefully they will last a bit longer.
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Old 03-05-2018, 10:18 AM   #17
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Check your hubs too...another part that can cause issues if its worn out but pretty unlikely if the Jeep is a 2017. Hope you find it man.
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Old 03-05-2018, 10:57 AM   #18
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A blown shock wouldn't cause DW, but DW could blow a shock... and a worn shock could allow DW to amplify.

Don't focus on 'its too new for this to be worn'... My last Rubi had a bad hub very early. My new JKU had ball joints fail before the first oil change (they didn't have any grease in them from the factory...)

Track bar bolts are also tricky. They can be torqued to spec, you can have it on a lift and whack them and they won't move... but DW can create immense forces that will still make it move, and once it's moved and created a bit more space... it will just get worse. Why now? My experience is if it's had one real DW case (wobble until you stop) you've certainly elongated the track bar mount holes...
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Old 03-05-2018, 01:51 PM   #19
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Where r u located? Sometimes a fresh set of eyes can pick up something. At least they didn't just recommend throwing random $ at the issue.

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Old 03-05-2018, 02:48 PM   #20
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It sounds like it's time to upgrade with a HD tie-rod, HD track bar and possibly an HD drag link.

9 out of 10 times DW is related to a problem with the track bar.

You got the lift, wheels and larger tires but you're not done yet. The next progression in the process are steering upgrades because they're needed for the larger tires.

So go buy those items, get them installed, and have the alignment done. They will likely fix your problem, but the best news is that if they don't, then you're not throwing money away because they're needed anyways and you will thank me when you notice your steering no longer feels sloppy.
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Old 03-05-2018, 08:54 PM
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I'm located in New Jersey. RednRoll, I have the JKS Front track bar installed by the 4x4 shop. id assume if it was wallowed they woulda said something since I went there the first time for the wobble issue and they recommended it.


we had a shit load of snow so I just googled for the picture above, its the same setup. I made an appointment for tomorrow AM to drop the jeep back at the dealer and see if they can figure it out. if not then il just start throwing money at it and order new braces/brackets and new bars.
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Old 03-06-2018, 01:43 PM   #22
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I'm located in New Jersey. RednRoll, I have the JKS Front track bar installed by the 4x4 shop. id assume if it was wallowed they woulda said something since I went there the first time for the wobble issue and they recommended it.


we had a shit load of snow so I just googled for the picture above, its the same setup. I made an appointment for tomorrow AM to drop the jeep back at the dealer and see if they can figure it out. if not then il just start throwing money at it and order new braces/brackets and new bars.
While NJ isn't a large state there are areas that are a pita to travel to. I assumed you were somewhat "local" to Stewartsville just wondering which direction in the event you wanted to have options on figuring it out. I'm right outside Princeton.

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Old 03-06-2018, 03:22 PM   #23
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If that pick is when the jeep is on the ground the front spring is literally coming into contact with your bumpstop, this means your axle is pushed way too forward, especially for just a small 4" lift. I had a 4" lift and my caster was set to stock - 0 DW and 0 BS. Check your caster, I think its way too negative.

Also, is your track bar and drag link parallel to each other? And do you have both front and rear adjustable track bars, if so is your Jeep centered? You may want to take some measurements and adjust the centering of both front and rear axles.
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Old 03-08-2018, 03:42 PM
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the picture is from google, not my jeep, it was just for reference since there is a few models of the mopar lift kit. yeah il have the shop redo my alignment and get a spread sheet and see what everything is.

they seem to be. il snap some pictures. I only have the front to be adjustable, rear is the mopar upgraded one with the lift kit. the 4x4 shop installed the JKS front adjustable bar and centered it.


well I got the wrangler back from the dealer they said the Fox Performance steering stabilizer was toast, they gave me a bilstein one and now it drives like it did before all of this happened. so maybe it was so damaged internally it affected driving? i have ZERO wobbling now, steering is tighter and streamline.
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Old 03-08-2018, 03:46 PM   #25
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the picture is from google, not my jeep, it was just for reference since there is a few models of the mopar lift kit. yeah il have the shop redo my alignment and get a spread sheet and see what everything is.

they seem to be. il snap some pictures. I only have the front to be adjustable, rear is the mopar upgraded one with the lift kit. the 4x4 shop installed the JKS front adjustable bar and centered it.


well I got the wrangler back from the dealer they said the Fox Performance steering stabilizer was toast, they gave me a bilstein one and now it drives like it did before all of this happened. so maybe it was so damaged internally it affected driving? i have ZERO wobbling now, steering is tighter and streamline.

I would still have everything triple checked. If everything is in working order, you shouldn't even need a steering stabilizer (i can drive mine without one). That stabilizer could be masking the root problem
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Old 03-08-2018, 04:02 PM
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i did, i undid the full lift kit upfront, undid all the bolts/nuts and let it sit on the ground with the weight of the vehicle and retorqued. it has to be a wallowed out hole somewhere. nothing was loose or damaged.
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Old 03-11-2018, 11:59 PM
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dealer replaced my fox steering stabilizer, saying that it wasn't working correctly. wasn't warrantied? even though it was under the 1 year mark.... they supplied a Bilstein one. and I have zero wobble now... hmm?

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