Diagnosing Death Wobble and Fixing Non-DW Shimmies and Wobbles - Page 12 - Jeep Wrangler Forum
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Old 02-26-2013, 09:08 PM   #331
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Quote:
Originally Posted by ESP
Planman, I haven't sent a thank you to you before but as many have attested to, your info and videos have taught me a lot. Thanks -

I found vertical movement in both my TREs and drag link ends yesterday after letting the wife cycle the steering. JKS TBs I have are rock tight so time to upgrade the stock TR and drag links. Going with Synergy serviceable and greaseable.
Thank you. I really appreciate it. Good choice.

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Old 02-26-2013, 11:18 PM   #332
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Not my video but mine looks about the same. I understand rotational movement is normal but not side to side or up and down. Is any movement left/right/up/down on the TREs cause for replacing them or can they have a little motion in these directions and it's ok?


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Old 02-27-2013, 12:35 AM   #333
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Not my video but mine looks about the same. I understand rotational movement is normal but not side to side or up and down. Is any movement left/right/up/down on the TREs cause for replacing them or can they have a little motion in these directions and it's ok?
The ones in the video are bad--except for the end at the pitman arm.

Below is a drawing (not mine) of the internals of a tie rod end. Looking at it, you can see that the ball at the bottom of the stud would be designed for only enough side-to-side and up-and-down movement to allow grease in there. Much more, and you get too much slop. With a dry steering test, you would feel a clunk if you put your hand on the tie rod.

The stock tie rod and drag link ends are not servicable (greasable). They are sealed from the factory.





Here is a video of a bad aftermarket tie rod end:

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Old 02-27-2013, 10:17 AM   #334
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Planman...as with everybody else that has been haunting this thread, Thank you for explaining the way things work. I replaced my stock trackbar with a JKS Adjustable trackbar and that helped with some of the shimmying(sp) and what has helped the most is the suspension geometry brackets by AEV. David at Northridge 4X4 was most helpful by a bit of advise and great price shipped for both items.
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Old 02-27-2013, 11:44 AM   #335
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Quote:
Originally Posted by Divingjeeper
Planman...as with everybody else that has been haunting this thread, Thank you for explaining the way things work. I replaced my stock trackbar with a JKS Adjustable trackbar and that helped with some of the shimmying(sp) and what has helped the most is the suspension geometry brackets by AEV. David at Northridge 4X4 was most helpful by a bit of advise and great price shipped for both items.
How much lift?
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Old 02-27-2013, 11:56 AM   #336
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ok my rear universal broke a few weeks ago and i got it replaced but now i have a horrible shake in it...im a woman lol i dont know what to do so any help would be nice
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Old 02-27-2013, 12:05 PM   #337
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Quote:
Originally Posted by jessicabradford
ok my rear universal broke a few weeks ago and i got it replaced but now i have a horrible shake in it...im a woman lol i dont know what to do so any help would be nice
Drive shaft u-joint ?
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Old 02-27-2013, 01:14 PM   #338
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yeah it broke off and we replaced it but not the yoke
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Old 02-27-2013, 01:43 PM   #339
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Regarding the vertical movement of the TREs and drag link ends, how much or how long can these do this before it may become DW?

If there is any vertical play in the ends, does this always mean they need replacing?
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Old 02-27-2013, 02:04 PM   #340
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How much lift?
I did an OME spring lift. Used the medium duty in the rear and the heavy duty with 1/2 shock spacers in front in anticipation of an after market bumper and winch. I got 3 inches of lift in front and 2 1/2 inches in the rear. ( I highly endorse OME )
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Old 02-27-2013, 02:07 PM   #341
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Quote:
Originally Posted by ESP
Regarding the vertical movement of the TREs and drag link ends, how much or how long can these do this before it may become DW?

If there is any vertical play in the ends, does this always mean they need replacing?
There is a minimal tolerance for play.

I don't know the acceptable spec, but if they move as much as that video or knock quite a bit with a dry steering test, they would contribute to wobble problems.

The knuckle side drag link end would cause the most problems for that guy because his steering stabilizer would more easily mask the tie rod ends. Because the stabilizer isn't attached to the drag link, it doesn't mask it directly.
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Old 02-27-2013, 02:45 PM   #342
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Quote:
Originally Posted by jessicabradford
yeah it broke off and we replaced it but not the yoke
Can you post a pic ?

Maybe the install went wrong.
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Old 02-28-2013, 09:19 PM   #343
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ok my rear universal broke a few weeks ago and i got it replaced but now i have a horrible shake in it...im a woman lol i dont know what to do so any help would be nice
That sounds like the universal went bad. They might have lost a bearing pin out of it and it made dust of the others. A bad joint flopping inside the cap, or improperly installed joint not seated correctly in the yokes, is the only thing that would explain this situation.
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Old 03-06-2013, 02:26 PM   #344
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I went ahead and added the 2 Diagnosis videos to the first post in this thread.
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Old 03-18-2013, 10:39 AM   #345
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Death Wobble

I have been experiencing for some time. I changed the dampener as recommended by jeep. now they are saying i may need a shimmy shock?? Is there truly a fix? Mine is a 2008 sahara unlimited. At what year jeep will i not have this issue? I am thinking about just trading for a 2010. Will 2010 have or develop the same problem? Thanks
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Old 03-18-2013, 05:09 PM   #346
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I have been experiencing for some time. I changed the dampener as recommended by jeep. now they are saying i may need a shimmy shock?? Is there truly a fix? Mine is a 2008 sahara unlimited. At what year jeep will i not have this issue? I am thinking about just trading for a 2010. Will 2010 have or develop the same problem? Thanks
If you review the first few posts in this thread, all of your questions should be answered.

The steering damper has nothing to do with it, there are several fixes depending on what's really the issue, and any year wrangler (or any vehicle with a solid front axle) can have the same problem, though DW is in fact very rare so it's unlikely that it will.

Go back and read the first few posts, study the diagrams, watch the videos, and go look under your jeep. Short of simply trading it for something without the problem, that's the best thing you can do.
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Old 03-28-2013, 01:49 AM   #347
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I recently started getting some slight wobbles that were speed dependent and it turned out my frame side front trac bar bolt had loosened and started ovaling the bracket. I would like to add my other symptom. I found that I had 2 straight forward positions on my steering wheel, slightly left and slightly right depending on what way the wind was blowing. After reading your writeup it was plainly obvious what my issue was.

now for my question. Am I correct to assume that I could put 2 high quality washers that are the same diameter as the bolt onto it and weld them onto the bracket?
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Old 03-29-2013, 09:28 AM   #348
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Originally Posted by Tweak View Post
I recently started getting some slight wobbles that were speed dependent and it turned out my frame side front trac bar bolt had loosened and started ovaling the bracket. I would like to add my other symptom. I found that I had 2 straight forward positions on my steering wheel, slightly left and slightly right depending on what way the wind was blowing. After reading your writeup it was plainly obvious what my issue was.

now for my question. Am I correct to assume that I could put 2 high quality washers that are the same diameter as the bolt onto it and weld them onto the bracket?
You can weld washers over the holes.

Some guys have welded plate over the ovaled holes and redrilled new holes.

Some guys have jammed a piece of hardwood in there to block splatter, welded the stock holes closed, then redrilled.
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Old 04-03-2013, 11:12 PM   #349
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Started replacing my track bar bushings today. Good lord that was hard getting them out.

My bolt hole on my axle bracket for the track bar is slightly wallowed out. Do i have to weld a washer in there to stop dw?
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Old 04-04-2013, 05:57 PM   #350
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Started replacing my track bar bushings today. Good lord that was hard getting them out.

My bolt hole on my axle bracket for the track bar is slightly wallowed out. Do i have to weld a washer in there to stop dw?
That is the best solution. Check the rear hole as well.
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Old 04-04-2013, 09:31 PM   #351
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I had a extremely bad death wobble in my 2009 Rubicon. CHanging the 14mm bolts to 3x9/16 bolts worked for a few months. But eventually I felt the wobble get worse again. I pulled the track-bar and found that the bolt hole on the frame side had wallowed out even more. UGGHHHHHH. There were two options..... weld some washers and create a new bolt hole, or grab a bolt on, sector shaft kit from synergy suspension. Having been apart of multiple "backyard" fixes on my old TJ, I went with the kit. And I can say that so far after 1000 miles, coupled with the synergy track-bar, the ride is damn near back to stock, Before the 35s, wheel spacers and 20,000 highway miles last year.
So please dont skimp on the Death Wobble issue. Spend a couple hundred bucks and do it right. IT COULD SERIOUSLY SAVE YOUR LIFE
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Old 04-08-2013, 06:19 AM   #352
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Uhm how does a sector shaft kit fix the bolt holes?
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Old 04-09-2013, 09:29 AM   #353
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Talking

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Uhm how does a sector shaft kit fix the bolt holes?
Uhhhmmmmm. Well I will take pics and post. Its quite simple though, it "re_creates" the body side trak bar holes. You know, the holes that wallow out....
By your "uhm" michigan adam, you seem skeptical. But I promise you the kit is better than just welding some washers, which would have been a quick fix.
But skepticism does breed knowledge, soooo good question
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Old 04-09-2013, 09:54 AM   #354
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Plus I was very impressed with the quality of the synergy stuff. In my opinion it was worth the money, especially since my children are in my jeep alot of the time. I preach safety to them all the time and wasnt going to put their safety in jeapordy over a few welds and washers.
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Old 04-09-2013, 10:32 AM   #355
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Pics of the synergy sector shaft brace kit
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Old 04-10-2013, 05:44 AM   #356
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I wasnt skeptical, just didnt understand. Thanks for the pics. I need one of those
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Old 04-10-2013, 06:24 AM   #357
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What about the axle side bolt holes though? It seems that someone used a "new" dana 30 housing that hax pre wallowed holes when they changed it.......
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Old 04-10-2013, 01:46 PM   #358
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Synergy Suspension*::*Jeep JK*::*Synergy Suspension Jeep JK Front Track Bar Relocation Bracket

check that out. i was looking around and didnt find too much to remedy the issue. I have heard that a good weld job on some washers is sufficient.
I totally respect planman and have used his videos as reference on multiple occasions. in fact i would love to hear his input on the sector shaft brace kit and track bar brace kit
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Old 04-10-2013, 03:26 PM   #359
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"Compatible with 3 inch and taller lift"

Hmm, guess i have to get a 3 inch lift now....
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Old 04-10-2013, 06:32 PM   #360
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well sometimes you just gotta bite the bullet i guess... lol.

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