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Old May 27th, 2013, 08:24 AM   #1
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Default tj death wobble i know its a tired question

I have a 98 tj that i purchaced in nov.2012 then it was stock and would go down the high smooth as silk at 85 mph. then around feb.2013 i lifted it with the rc 2.5 spring lift and thats where my trouble began. BTW. I have searched this question many places but still havent found a cure for my jeep.What i have done so far is replaced all 8 front controll arm bushings with moog, clevite brand bushings the same the factory used I saw 2 were loose so i replaced them all, no help. I then also saw the track bar bushing was moveing at the axle replaced that ,no help seen play at pitman arm tie rod replaced that still no help. At this point i can not find any more play in the steering at all but still the wobble . Yesterday I found the 6 bolts at the transfer case skid plate were loose. I thought that might be it since i used flat washers and hex bolts to shim it down to stop low speed drivetrain vibrations. So iremoved the hex bolts and re installed the factory beveled boltsand went for a ride the wobble now hapened at less speed than useual.It seems the more i get tight the worse it gets I did not change the ss because i did not want to mask the real problem.So can castor and tow cause the wobble. my jeep does have cam bolts in the lower cas. but im not sure how to properly ajust them . Any sugestions and help would be great thanks all
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Old May 27th, 2013, 08:29 AM   #2
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yes toe can cause death wobble. did you re set the toe in after installing the lift?
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Old May 27th, 2013, 08:56 AM   #3
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Sounds like an alignment might be a good next step. Don't forget to douclbe check your wheelbearings, ball joints as well.
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Old May 27th, 2013, 09:05 AM   #4
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i realy did not know i had to set the tow or how exactly to do that at home. also after lift the steering wheel is cocked to the left after lift should that be corrected first and how to do that?
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Old May 27th, 2013, 09:09 AM   #5
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When you lift a vehicle with y link steering it increases the tow In so you have to re adjust toe in. Take it to a alighn ment shop, your problem is too much toe in
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Old May 31st, 2013, 09:10 AM   #6
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so, all new bushings in front, new tie rod end at pitman arm, everything feels tight (other tie rod ends, ball joints, bearings, still getting death wobble

any other thoughts?
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Old May 31st, 2013, 09:46 AM   #7
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Get a good alignment. Although a bit of a drive, I recommend going to Kovach's in Brighton. They do not have issues working on highly modified vehicles and will get you setup.

http://www.kovachs.com/location-and-hours.html
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Old June 10th, 2013, 09:31 AM   #8
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Quote:
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Get a good alignment. Although a bit of a drive, I recommend going to Kovach's in Brighton. They do not have issues working on highly modified vehicles and will get you setup.

http://www.kovachs.com/location-and-hours.html
this is not highly modified at all, 2.5 inch lift...

checked caster, one side off a bit, corrected and no change, seems to be a bit of slope in the steering box, no other loose connections

going to try a steering box next weekend
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Old June 10th, 2013, 10:10 AM   #9
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When are you getting wobble. How is it induced?
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Old June 10th, 2013, 12:15 PM   #10
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When are you getting wobble. How is it induced?
Rick is my neighbor, I have not driven his jeep, but he tells me it starts around 55mph, he says pretty much as soon as he gets there, starting vibrating somewhere about 50, getting violent at 55, and keeps up until slowing to about 25, but he never mentioned needing to hit a bump to get it going.
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Old June 10th, 2013, 12:17 PM   #11
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try getting your tires balanced. Might be a good starting point
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Old June 10th, 2013, 12:30 PM   #12
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Caster and toe-in both need to be reset on a TJ after a lift, even one that small. I would shoot for 1/8" toe-in, and 6 degrees of caster.
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Old June 10th, 2013, 12:35 PM   #13
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Caster and toe-in both need to be reset on a TJ after a lift, even one that small. I would shoot for 1/8" toe-in, and 6 degrees of caster.
and they both have been re-set
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Old June 10th, 2013, 12:37 PM   #14
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Bent wheel
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Old June 10th, 2013, 12:38 PM   #15
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Quote:
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try getting your tires balanced. Might be a good starting point
starting point?
he's way past starting point LOL

he has had the tires balanced, an alignment, reset the caster, replaced all the control arm bushings, and the track bar bushing,
there is no slop/play in the ball joints,
but there is slop in the steering box.
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Old June 10th, 2013, 12:52 PM   #16
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Quote:
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try getting your tires balanced. Might be a good starting point
Quote:
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Bent wheel
we could try swapping my tires on to his jeep, just to see if it makes a difference, but as I stated, he did have them balanced. If it was bent bad enough to cause death wobble, it should have been a flag when they tried to balance them.
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Old June 10th, 2013, 01:14 PM   #17
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Quote:
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we could try swapping my tires on to his jeep, just to see if it makes a difference, but as I stated, he did have them balanced. If it was bent bad enough to cause death wobble, it should have been a flag when they tried to balance them.
No you can balance a bent wheel
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Old June 10th, 2013, 01:30 PM   #18
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Quote:
Originally Posted by swampjeep View Post
starting point?
he's way past starting point LOL

he has had the tires balanced, an alignment, reset the caster, replaced all the control arm bushings, and the track bar bushing,
there is no slop/play in the ball joints,
but there is slop in the steering box.
This was the cause of death wobble in my son's jeep.
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Old June 16th, 2013, 07:00 AM   #19
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replaced steering box with re-man Durango box - no change
moved track bar mount hole over 3/4 in because I noticed it pulled the axle to the left no - change
Anyone know of a good shop that deals with death wobble problems or want to take a look them selves near Waterford please let me know. I'm running out ideas and money to keep not solveing the problem
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Old June 16th, 2013, 07:17 AM   #20
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have you put a heavy duty steering stabalizer on it yet?
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