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TJ Wrangler 4" Rough Country Suspension Lift Kits in JEEP Gear Change Packages From ROCKRIDGE 4WD. We Are DIFFIron Cross Customer JK and TJ Wrangler Bumpers now at ROCK

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Unread 04-08-2013, 09:02 PM   #1
ZTWITT733J
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My zjs lifted 3.5 inches and i ve had vibrations but nothing too bad. Then I got the bone rattling concussion giving death wobble. So i lifted it up and found a faulty tie rod end, fixed it and ran fine for a month . Now it has returned when i get above 37mph and i cant figure it out at all. Got the tires balanced and a new stabilizer but no fix. Does anyone have a idea or the fix?

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Unread 04-08-2013, 09:04 PM   #2
WhiteOut
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Track bar and then control arms.

Anything to do with tires or the SS is not going to do anything at all.
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Unread 04-08-2013, 09:17 PM   #3
ZTWITT733J
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Thats what i thought but thats what my dad said to do
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Unread 04-09-2013, 07:57 AM   #4
durango-bob
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Ball joints can also be a major contributor.
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Unread 04-09-2013, 08:38 AM   #5
riot1987
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DW can be a combination of many "little" problems adding up to a bigger picture. As stated check ball joints, CA bushings, etc. You should have an adj. Track bar as well if you dont already. Steering stabilizers sometimes help for some. Most times it isnt that easy of a fix though
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Unread 04-09-2013, 08:41 AM   #6
1ATony
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Brian over here had it bad too, he replaced pretty much everything in his suspension. What finally fixed his was a new IRO ADJ track bar.
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Unread 04-14-2013, 06:22 PM   #7
ZTWITT733J
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I replaced the control arms and checked my adj. IRO track bar (which is tight) and the wobble hasn't left. Any other suggestions? I have a question about the control arm brackets on the axle why are they slotted and what is the correct caster for the front end?
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Unread 04-14-2013, 06:24 PM   #8
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Was the axle side hole wallowed out? Bushings fine?
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Unread 04-14-2013, 06:27 PM   #9
riot1987
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Did you check your ball joints? Did you replace the upper ca bushings as well when you did your control arms?
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Unread 04-14-2013, 06:28 PM   #10
ZTWITT733J
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The bushings were in bad shape but not really wallowed out though
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Unread 04-14-2013, 06:30 PM   #11
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Quote:
Originally Posted by ZTWITT733J View Post
The bushings were in bad shape but not really wallowed out though
So you removed the bar and checked the axle side mount holes?

Replace the bushings before you try anything else.
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Unread 04-14-2013, 06:33 PM   #12
ZTWITT733J
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How do you check the bushing i just jack it up and see if i can get any movement on the tire or knuckles and i didnt replace the top ca bushings they are in pretty good shape
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Unread 04-14-2013, 08:10 PM   #13
Rich93ZJ
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Good info here....http://www.kevinsoffroad.com/how-to-...-death-wobble/
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Unread 04-14-2013, 08:52 PM   #14
Technohead
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Quote:
Originally Posted by ZTWITT733J View Post
I replaced the control arms and checked my adj. IRO track bar (which is tight) and the wobble hasn't left. Any other suggestions?
Caster angle. You should be at about 5 degrees positive.
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Unread 07-22-2013, 12:10 PM   #15
ZTWITT733J
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Sorry I'm bringing this back from the dead but the problems still there and the zj isn't my dd during the summer but I'm gonna need it to go over 40 in the future.

I can't find slop in anything. There is some movement in all of the greaseable bushings but that movement is just clockwise or ccw around the links.

Any ideas?
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