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Front end oscillation after recall fix

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Old Aug 4, 2013 | 10:51 PM
  #11  
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Originally Posted by Action Potential
@Dog: It seems like a crap load of work for a steering box. Did you consider the borgeson steering box ? Or doesn't that work ? Sorry for the dumb questions. I'm just finding out about this stuff.
Installing the Solid Steel track bar conversion is really not much harder than replacing the OEM track bar. By adding the bracket, it allows the use of the later style re-designed track bar, which eliminates the failure-prone joint that exists at the truck frame end of the track bar. I should never have to replace the track bar ever again - if anything needs replacing, it would be the track bar bushings.
 
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Old Aug 5, 2013 | 12:46 AM
  #12  
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$2500 to drop on a front end of a $1200 truck.. I do like that solid state track bar..

The oem track bar is one odd design. Who thought of the twist in the bar ?

If I could knew I could sell enough of them, I'd make a Watts style track bar. It would keep the front axle centered all the time instead of pushing it side to side.
 

Last edited by Action Potential; Aug 5, 2013 at 01:00 AM.
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Old Aug 5, 2013 | 01:26 AM
  #13  
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You could just get the MOOG OEM-replacement track bar. That's the only OEM-style trackbar that's recommended on here.
 
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Old Aug 5, 2013 | 09:32 AM
  #14  
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I'm on rock auto right now ordering up moog part..$550 and not done yet
 
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Old Aug 5, 2013 | 09:39 AM
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Yikes, that's why I dread having to do front end parts.
 
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Old Aug 5, 2013 | 10:51 AM
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I just found a NHTSA utube video on the death wobble on a ford F250. You can 'see' the lateral oscillation. Seems most trucks with a panhard type track bar have this problem, not only chrysler.

There is not one single component that causes the wobble, several 'stars' need to align. Changing one part can correct the problem. The bottom line is the entire steering and suspension must be rock solid, including the mounting to the chassis frame.

Any "flex" in the parts will cause the oscillation. Who thought of a curved track bar ? Its just a big spring !!

 

Last edited by Action Potential; Aug 5, 2013 at 11:02 AM.
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Old Aug 5, 2013 | 11:01 AM
  #17  
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I think they put in a curved track bar because of diff clearances, not sure though.

I would take a guess and say that a thicker track bar would definitely help.
 
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Old Aug 5, 2013 | 11:06 AM
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I like what you are saying as "you get it".

Bend is for diff clearance like Dodge Dude said. I mean so many drivers stuff the driver side tire often.


Originally Posted by Action Potential
I just found a NHTSA utube video on the death wobble on a ford F250. You can 'see' the lateral oscillation. Seems most trucks with a panhard type track bar have this problem, not only chrysler.

There is not one single component that causes the wobble, several 'stars' need to align. Changing one part can correct the problem. The bottom line is the entire steering and suspension must be rock solid, including the mounting to the chassis frame.

Any "flex" in the parts will cause the oscillation. Who thought of a curved track bar ? Its just a big spring !!

death wobble video
 
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Old Aug 5, 2013 | 11:36 AM
  #19  
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Thinking about it... I can see why the trade-off.. Still idea of placing the support point on one side of the axle is just asking for trouble. It causes an uneven pivot between the left and right axle control arms. The right side moves differently then the left creating an elliptical motion triggering the oscillation. The further the track bar is from axle center increases the chance to trigger.

It's easy for me to comment with the advantage of hindsight, now the problem has a video to document it.. It obvious. I wouldn't want to be the design engineers, that had to deal with the "oh ****" moment and trying to track it down.
 
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Old Aug 5, 2013 | 07:37 PM
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I experienced "death wobble" at 75 MPH.. The vibrations I experienced lived up to the "death wobble" moniker and I had the hardest time getting the truck back under control - luckily, there was no other traffic around me on the highway and I could use two lanes to get the truck back under control. Death wobble is no fun and very scary, so I decided to fix it with a comprehensive front-end rebuild. BTW, the Solid Steel track bar has the bend in it for suspension clearance and the bar is much thicker than the stock bar - you can get it in adjustable or non-adjustable versions. If you shop around, the bar and bracket can be found fairly reasonably, as several places carry it.
 
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