death wobble

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Jun 13, 2003
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OK, so I have searched all over for an answer. 2.5" lift, 2" over shackles,33 x 9.50 BFGs well balenced, rebuilt knuckles and bearings. 2.5' shims. Tracks straight, correct toe in, does not pull, no hwy issues.

If I hit a bump just right I get the death wobble. Sorta scary at 70mph.

Any ideas?
 
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Could this be bump steer ? Just thowing it out there. And Dave if this is in a 40...slow down :eek:
 
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Sorry not enough info. I flame people for the same things :doh:

1988 62. All new tie rod ends also. SHims are in the correct orientation. The pumpkin looks correct.

No bump steer to speak of. It does track a bit funny but nothing to worry much about.

I have never had death wobble with the fleet and I have lifted and shimmed and extended all sorts of stuff. Until last week I thought death wobble was like tyres way out of balance. Now I know the real feeling and I dont like it.
 
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Apr 16, 2003
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i had a similar issue with myy 40. ended up that it was toed out. Thanks again alignment shop. Scard as hell when it first happened.
 
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Hmmm, if all the tie rods, bushings etc are all good and your steering geometry is fine, toe and caster are ok...what about the shocks ??
 
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Try rolling the front axle back a bit more with some four degree shims. Mine didn't like the one degree called out in the book. I'm now running about four degrees and it is a whole different rig.
 
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Shocks and ft sway bushings are new shocks are OME bushings are energy suspension. I might try 4' shims but it all "looks" right witht eh 2.5' shims.
 
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Apr 17, 2003
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don't know for sure but the only other thing I can think it may be is the steering damper, or maybe wheel bearings, if they're loos they could cause it to shake too.
 

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Oh...Durka Durka Durka.
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Loose u-bolts can cause this also.

Verify that they are tight.
 

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