Front end shake even w/ new tires. - Ford Powerstroke Diesel Forum
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Old 02-12-2008, 07:02 AM
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Front end shake even w/ new tires.

Hey guys my 2005 F250 super duty, Stampede has had 2 sets of tires on it since i bought it back in 2005. At around 40 -50 mph the front end gets real bouncy and bumpy, you notice it a lot more with the xterra tires that came w/ it new. I took it to ford they said tires out of balance, etc.

Got them balanced but same problems...it got so bad that i couldnt even let my wife drive it, between 35-45 mph if you hit a pothole the whole steering wheel would shake violently until you slowed down real fast, same thing between 40-50, but not as vigorous a shake. after 50 it was fine.

So thinking it was those big meaty tires i went and bought new ones, same size but not mud tires, just good BF goodrich truck tires.315/70R-17

Things are okay but i still feel the steering wheel shake, just a little, between 40 and 50. Im wondering how long it will take for these tires to get to the point that we had the uncontrollable wheel shake, or is it just the front end alignment that could do that?


Also wondering if this is common in big trucks with big tires like this one.
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Front end shake even w/ new tires.-photo0153.jpg  

Last edited by metronil; 02-12-2008 at 07:12 AM.
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Old 02-12-2008, 07:17 AM
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Sounds like something in the front end to me, possibly something loose?

Bumping this up for ya, someone should be along soon with a better idea.

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Old 02-12-2008, 07:45 PM
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trac bar bushings .. the axle is likely walking side to side often referred to as death wobble.. usually more common on dodges but I have had it happen on fords too
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Old 02-12-2008, 07:51 PM
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My sisters 06 did this. She took it in 2 times and they tried the basics. Then she took it in a 3rd time and they said it was the way it was and she told the service manager to drive it and he did and the truck death wobbled and he almost crashed it. Turns out the balljoints were bad and caster cams were junk. Those got replaced and the truck is fine. It aslo has 37's.
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Old 02-12-2008, 07:51 PM
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Quote:
Originally Posted by Cj Ford View Post
trac bar bushings .. the axle is likely walking side to side often referred to as death wobble.. usually more common on dodges but I have had it happen on fords too
Happens on lifted Jeeps too.

Track bar bolts could be loose, could be too little or too much toe-in, could be control arm bushings....

Good luck!
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Old 02-12-2008, 08:06 PM
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I am fighting this right now. I have it at 4 wheel parts for an inspection. After talking to Fabtech and the tech at 4 wheel parts we are replacing the track bar tommorrow and the alighnment will be done. It is 350 lb/ft on the pitman arm nut 400 lb/ft on the track bar bolt, 18" tow in and 3.5-5* positive caster.(Fabtech Specs!!) I will let you knopw how this turns out. I am at my wits end!!
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Old 03-08-2008, 08:10 AM
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Thank you guys, i will take it in and have them check it again and this knowledge will hopefully help them zero in on it rather than send me packing.

i dont like the sound of 'death wobble' at all.
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Old 03-08-2008, 08:12 AM
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THey fixed mine with a new trac bar and a good alignment.
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Old 03-08-2008, 08:21 AM
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I think you are all right. My friends jeep also did this,adj. contol lins fixed it on that(canged caster) I also rec. the track bar for yours. Energy suspension made poly. bushings for mine.
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