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Steering stabilizer bar

Shopkeep

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IDeath wobble is no joke and can be really scary and fatal if the driver loses control on a highway.
Sorry to be a pedant but can you please direct me to any documented evidence of a single fatality being attributed to “death wobble” in a car? It really needs to be reclassified as “soiled my pants” wobble, even the ambulance chasers putting up Jeep owner class actions admit no one has actually died due to “death” wobble.
 

Jackattack13

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Sorry to be a pedant but can you please direct me to any documented evidence of a single fatality being attributed to “death wobble” in a car? It really needs to be reclassified as “soiled my pants” wobble, even the ambulance chasers putting up Jeep owner class actions admit no one has actually died due to “death” wobble.
How many deaths are caused by a driver, "losing control" of a vehicle. Will we ever truly know the cause in every case? No. I was just insinuating that it could place a driver and their passenger into a dangerous situation.
 

Dokatd

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Sorry to be a pedant but can you please direct me to any documented evidence of a single fatality being attributed to “death wobble” in a car? It really needs to be reclassified as “soiled my pants” wobble, even the ambulance chasers putting up Jeep owner class actions admit no one has actually died due to “death” wobble.
Who knows, but I always attribute the term to either the fact that you effectively have to come to a stop before the issue resolves or my favorite is the death of the suspension design on a built rig. First time I ran into Death Wobble back in the 90's was when I had a guy bring his hugely built Jeep with 44's in to have me solve the death wobble. The Jeep was a mess though. Death wobble is nuts with 44" super swampers. Both versions are my own interpretation and preference for the origins of the term though I'm sure neither are right.

As for accidents, I certainly almost ended up in the wall on the Dallas North Tollway when I first had Death Wobble on my IG. It was pretty gnarly. Im sure there have been injuries that could be attributed to Death Wobble but it's not a major concern otherwise Jeep and Ford would have been sued out of existence. Along with some others I would guess.

But soiling pants is probably a pretty common occurrence as a result of Death Wobble.
 

Shopkeep

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Who knows, but I always attribute the term to either the fact that you effectively have to come to a stop before the issue resolves or my favorite is the death of the suspension design on a built rig. First time I ran into Death Wobble back in the 90's was when I had a guy bring his hugely built Jeep with 44's in to have me solve the death wobble. The Jeep was a mess though. Death wobble is nuts with 44" super swampers. Both versions are my own interpretation and preference for the origins of the term though I'm sure neither are right.

As for accidents, I certainly almost ended up in the wall on the Dallas North Tollway when I first had Death Wobble on my IG. It was pretty gnarly. Im sure there have been injuries that could be attributed to Death Wobble but it's not a major concern otherwise Jeep and Ford would have been sued out of existence. Along with some others I would guess.

But soiling pants is probably a pretty common occurrence as a result of Death Wobble.
Guess what gets my goat is a long standing and common description of an inconvenient event well known in 4X4 circles gets twisted by the net to be the cause of fatalities and something that is coming to kill you. Maybe that’s just the post truth world we are living in (who needs fact checking?)

People fitting aftermarket accessories and making fundamental changes to the drivetrain of their vehicle need to go in with eyes wide open and understand the potential benefits and the risks. Those selling these accessories to the uninitiated also bear a responsibility to inform their customers of any risks. Like anything in life understand what you are getting into before you hand over your hard earned.
 

Tazzieman

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Guess what gets my goat is a long standing and common description of an inconvenient event well known in 4X4 circles gets twisted by the net to be the cause of fatalities and something that is coming to kill you. Maybe that’s just the post truth world we are living in (who needs fact checking?)

People fitting aftermarket accessories and making fundamental changes to the drivetrain of their vehicle need to go in with eyes wide open and understand the potential benefits and the risks. Those selling these accessories to the uninitiated also bear a responsibility to inform their customers of any risks. Like anything in life understand what you are getting into before you hand over your hard earned.
Stop your rational talk right now!
 

parb

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Ineos seems to have decided this is the level of resistance necessary to eliminate any issues with resonance, and from peoples experience with lower resistance units, I does appear they are right, unless you're telling me these people are liars.
It is entirely plausible that the steering stabilizer is overly powerful on the grenadier by design and that this fact is unrelated to any death wobble despite the attempts to rationalize it as being required for something.

It is very human to pattern match and look for the closest plausible explanation but its also very human to be fooled by randomness. This death wobble could very well be a fault or a tolerance issue within the steering system of the relatively few people who have reported it vs the very many who have not had this symptom at all. The shops working on this vehicles are still relatively new to them and i doubt they yet have much institutional knowledge about them.

I don't think anyone in this thead really has any useful data on the death wobble, it seems like mostly pontification. As far as Ineos and their representatives are concerned its far easier for them to make it go away by returning the car to stock than to take the time to figure out if there is a real root cause that should be investigated.

I have a strong suspicion it is not supposed to behave this way for those who experience it with or without a dampener on flat roads. I dont think there is any incentive for ineos, the resellers or the after market community to invest time and resources to figure out why it does if the dampener can camouflage the root cause. maybe if these fail in a fleet or race setting will we figure out a root cause but right now i think no one really can tell with certainty if this a feature or a flaw. Right now I lean towards flaw.
 

Shopkeep

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This GS Trophy support video from 2022 may have sent the prototype damper back for a late review. It's the only footage I have seen of steering wobble on the Grenadier. Starts at 56 seconds.
Good pickup! If you zoom in on his hands in that scene they are not moving, maybe a light touch on the wheel instead of hanging on for grim death and losing a thumb?
 

Dokatd

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This GS Trophy support video from 2022 may have sent the prototype damper back for a late review. It's the only footage I have seen of steering wobble on the Grenadier. Starts at 56 seconds.
I've honestly never seen Death Wobble on dirt. Though I don't see why it wouldn't happen on hard packed dirt. I just don't associate it with loose surface and lower speeds like this, especially with the smaller tires of a stock IG.

Interesting to say the least.

I'm not a fan of the bent tie rod and drag link, I'm curious if they have any influence on the potential for death wobble. Just a thought anyways. I'm likely going to convert mine to straight tubing at some point.
 

Shopkeep

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I've honestly never seen Death Wobble on dirt. Though I don't see why it wouldn't happen on hard packed dirt. I just don't associate it with loose surface and lower speeds like this, especially with the smaller tires of a stock IG.

Interesting to say the least.

I'm not a fan of the bent tie rod and drag link, I'm curious if they have any influence on the potential for death wobble. Just a thought anyways. I'm likely going to convert mine to straight tubing at some point.
From later in that video, pre-production stabilizer?
IMG_5770.png
 

Clark Kent

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I've honestly never seen Death Wobble on dirt. Though I don't see why it wouldn't happen on hard packed dirt. I just don't associate it with loose surface and lower speeds like this, especially with the smaller tires of a stock IG.

Interesting to say the least.

I'm not a fan of the bent tie rod and drag link, I'm curious if they have any influence on the potential for death wobble. Just a thought anyways. I'm likely going to convert mine to straight tubing at some point.
That video did the rounds in 2022 and was discussed at the time. I can't recall if it was posted on here or not. Someone rationalised that it may be due to the long travel coil suspension bouncing around the corner and we're seeing the panhard rod causing the axle housing to shift laterally against the drag link which is more or less being held stationary by the driver. The result is a shimmy movement of the steering arms and wheels. I can see the argument.
 

Dokatd

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That video did the rounds in 2022 and was discussed at the time. I can't recall if it was posted on here or not. Someone rationalised that it may be due to the long travel coil suspension bouncing around the corner and we're seeing the panhard rod causing the axle housing to shift laterally against the drag link which is more or less being held stationary by the driver. The result is a shimmy movement of the steering arms and wheels. I can see the argument.
That's called bump steer. It's a common problem on solid axle trucks. Early Broncos really like to do it when you lift them. It's a bizarre feeling and annoying. It takes a fair bit of travel to move the tires that much but who knows. I'm not seeing much vertical movement in the video.
 
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