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Make my Death wobble go away!

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Old Aug 26, 2009 | 06:55 PM
  #11  
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Originally Posted by BLACKSTONE
Stabilizer has nothing to do with death wobble. There are tons of right ups and posts on here about DW. You probably need to check several things like Caster, toe in, trackbar mounts brackets, do you have an adj trackbar? Are you keeping the tires balanced and rotated so they don't wear unevenly. Could be a combination of problems. Do a search for DW
no adj trackbar.. tires are fine.. im just shocked a dealarship couldnt find the issue.. funny thing is.. they said it never wobbled for them.. i find that hard to believe.
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Old Aug 26, 2009 | 07:03 PM
  #12  
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Originally Posted by Nickit1981
thanks... ill run through this.. so lets say i do this and everything checks out? whats the next step? and what stabilizer is everyone else using?
Check all that was listed First, then worry about what you have to do.
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Old Aug 26, 2009 | 07:06 PM
  #13  
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Originally Posted by KOGEHA
If that is true...why is the steering damper OEM...Also assume that a new Wrangler has all the proper torque spec's applied...

I will agree that all steering and suspension components need to be in good condition toques, clamping loads, no wear etc..) Also proper tire balancing, equal caster on both sides etc...BUT

You do need a Steering damper.. It will stop the DW oscillations from starting...Keep in mind this is still a solid axle suspension system NOT an IFS...(Oh yes, get ready.. now that Fiat is involved I see the IFS coming into the JK pretty soon...... )
lol.. ok.. im not ruling out any possibility, but i would like to think that dampener was put there for a reason. With all of that you said.. what dampeners is everyone using? I find it hard to believe everyone is using the OEM?
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Old Aug 26, 2009 | 07:11 PM
  #14  
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Originally Posted by KOGEHA
Sorry .. I forgot to mention this as well...
I have a BDS steering damper and I noticed a lot of improvements over stock..
thanks.. where did you purchase it from?
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Old Aug 26, 2009 | 07:26 PM
  #15  
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I have a wobble from 45-51mph. Happened after my RC 2.5" Coil spacer lift, and 1.5" RC wheel spacer install. I cannot pinpoint it to anything in particular. It's all tight, spacers are as centered as you can get them. (yes the rotor washers are off). Being at a limited mph, I almost think a bigger SS will solve the issue, but not really mask any "omg's!" under there.
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Old Aug 26, 2009 | 07:44 PM
  #16  
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Originally Posted by KOGEHA
Good dynamic tire balancing..Have a professional alignment check done..and share what you have.. There might be a clue..
I keep on saying (writing) that before changing parts or adjusting things.. you need to have a BASE line.. this is what a good alignment check will do.. Then with whatever you change, you need to redo the alignment check..then you know what has been changed..
First off, my Jeep has 4,300 miles on it. The lift was installed at 2,000. So alignment and wheel balance were perfect before the modifications...

Only toe can be adjusted (stock), the lift will not change that, the drag link hasn't been whacked either. So I have no reason to think the alignment is off. The tire balance was perfect when stock (installed the lift/spacers at about 2000 miles). The wobble happened immediately after the lift/spacer install. Unless it has amplified a "close" wheel out of balance with the spacers. However I have also rotated the tires since, with no real change in the wobble.

So the tires have been swapped, tires were balanced just fine at 2,000miles - wobbled right after the lift/spacers, the alignment (toe) would not have changed unless the draglink was loosened and moved (wasn't). Camber won't change unless something is bent. Caster won't reeeaally cause a wobble. It's possible, but it'd have to be like the caster is tweaked from one side to the other of the axle. Kinda remote since I'm with stock arms and such a small lift. I am leaning towards the spacers most. The last chance I have is rotating the wheel spacers themselves...looking for a change. If it wobbles in my seat vs the wheel then I'm onto something. If it doesn't change at all, I'm still at possible spacer issues/something else...
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Old Aug 26, 2009 | 08:04 PM
  #17  
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Originally Posted by GoodysGotaCuda
First off, my Jeep has 4,300 miles on it. The lift was installed at 2,000. So alignment and wheel balance were perfect before the modifications...

Only toe can be adjusted (stock), the lift will not change that, the drag link hasn't been whacked either. So I have no reason to think the alignment is off. The tire balance was perfect when stock (installed the lift/spacers at about 2000 miles). The wobble happened immediately after the lift/spacer install. Unless it has amplified a "close" wheel out of balance with the spacers. However I have also rotated the tires since, with no real change in the wobble.

So the tires have been swapped, tires were balanced just fine at 2,000miles - wobbled right after the lift/spacers, the alignment (toe) would not have changed unless the draglink was loosened and moved (wasn't). Camber won't change unless something is bent. Caster won't reeeaally cause a wobble. It's possible, but it'd have to be like the caster is tweaked from one side to the other of the axle. Kinda remote since I'm with stock arms and such a small lift. I am leaning towards the spacers most. The last chance I have is rotating the wheel spacers themselves...looking for a change. If it wobbles in my seat vs the wheel then I'm onto something. If it doesn't change at all, I'm still at possible spacer issues/something else...
A death wobble is not felt in the wheel or seat. It shakes the entire Jeep like mad until you almost come to a stop.
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Old Aug 26, 2009 | 08:26 PM
  #18  
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steering stabilizers factory or aftermarket are for the cushioning of bump steer, not to fix or prevent death wobble.

Do stock jeeps from the factory come with death wobble? NO
Like what has already been said a million times; a SS will not fix death wobble. Installing a heavier duty one or double may mask it but it will eventually wear it out just like the TS has already experienced. You will get the same result by only replacing the SS. Weather you put a stock one on or you put a $300 one on. It will absorb the wobble or play until it wears out the bushing or the SS itself.

DW is when the vehicle shakes out of control and you either have to slow down and/or stop, or speed up to get out of it. You need to ditch the SS idea. This is NOT your problem. DW is usually a combination of things. Start with the trackbar. Make sure everything is tight with no play in your steering and check your relocation bracket since you don't have an adjustable TB. Then you need to check your alignment. Next you need to make sure your tires are correctly balanced and then rotate them.

Last edited by BLACKSTONE; Aug 31, 2009 at 08:18 PM.
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Old Aug 26, 2009 | 08:29 PM
  #19  
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Originally Posted by Nickit1981
lol.. ok.. im not ruling out any possibility, but i would like to think that dampener was put there for a reason. With all of that you said.. what dampeners is everyone using? I find it hard to believe everyone is using the OEM?

Again SS was put there to cushion bump steer NOT correct death wobble which is totally different. Death Wobble is NOT normal, Bump Steer is. And YES I use the OEM stabilizer and I have a RE BB with 33" Mud Grapplers.

Its not just a coincidence that DW always occurs when people lift more than a few inches. Like I said the TRACK BAR is usually the corporate in conjuction with uneven tire wear and balancing caused by bad alignment issues due to the lift.

Listen to the people on this post that have been there man and quit getting hung up on the damn steering stabilizer.

After you fix the DW then put a good SS on it.


I had bad death wobble on my TJ. 4" lift 35's. The track bar bushing was ate up and bent it was shaking so bad I ran off the road. Also tie rod ends were trashed on the passenger side. Tires were so uneven they couldn't get close to being balanced.
I got new 33's, adj trackbar, and new tie rod ends and it road like a Caddy.

Last edited by BLACKSTONE; Aug 26, 2009 at 08:53 PM.
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Old Aug 26, 2009 | 08:40 PM
  #20  
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Originally Posted by KOGEHA
The lift spacers will change your caster..(axle rotates because of the upper and lower control arms..) and might change toe as well....
Wheel spacers (offset change) will change your scrub radius .. I am assuming you have the BFG LT255/75R17 T/A KM, on stock rims...In the event you went with bigger tires you indeed need different backspacing and this will balance out the scrub radius change..
Combination of the caster change and scrub radius change will create a NEW moment arm between the pneumatic trail and the SAI projection at the ground. This moment arm is very important once the initial oscillation creating bump is generated...(this with a weaker steering damper might be enough to have the DW...)
Anyway, I was going to have an alignment check done and also try to run without these wheel spacers (assuming you have Rubicon stock tires and wheels..)
Well I certainly don't have "death wobble" according to the other posters definition. It's a basic shimmy at a certain speed that goes away. My next step is to remove the front spacers I think. If the moons align and it goes away, then I'm on to speak with RC a little more. I'll get that done after my weekend trip. Thanks for the input.
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