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Unread 12-04-2012, 12:38 AM   #1
BLACK04WJ
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Utah Dub Club.. I need help.

as most of you know, this WJ is my first vehicle I've done anything to.. so I'm a noob haha. I've been trying to fix my death wobble issue and I've fixed a few things but still have a slight shake at highway speeds. let's hear your ideas!!!

so far I've done the following
new draglink with new TRE's
fixed track bar mount (it was oval lol)
new upper CA bushing (3 link)
ball joints/hubs/bearing are all good

here are the current alignment specs..

image-3270229221.jpg  
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Unread 12-04-2012, 12:41 AM   #2
801DubJay
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Have you balanced the tires or checked the SS?
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Unread 12-04-2012, 12:44 AM   #3
BLACK04WJ
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balanced the tires myself and it's the second SS
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Unread 12-04-2012, 12:47 AM   #4
801DubJay
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Dynamic balance? Have you also checked for roundness? (I believe that's what it's called - tire needs a surface pressure test as it rotates) Occasionally the belts will shift inside the tire causing it to hit the surface unevenly, acting like an unbalanced tire which can trigger dw.
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Unread 12-04-2012, 12:53 AM   #5
BLACK04WJ
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hmmm haven't heard of the roundness. the tires are new and I've only put a couple thousand miles in them.
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Unread 12-04-2012, 01:01 AM   #6
801DubJay
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If you are confident the tires are well balanced, the only other things I could suggest is to check every bushing on the TB and CA's and make sure they aren't worn. And, try swapping your front tires for the back ones and see if dw changes. If dw still occurs but at a different speeds, then there is a balance issue with the tires. AND if it doesn't occur, then there is a balance issue as well. Also check for wear on the tires, perhaps the shoulders are wearing at different rates and the contact patch is off.
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Unread 12-04-2012, 01:09 AM   #7
BLACK04WJ
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sounds good, thanks Matt! I checked the track bar bushings and they looked good. I have new ones so maybe I'll just throw them on anyways.
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Unread 12-04-2012, 01:13 AM   #8
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I think it's just the roads in price ha ha JK looks like Matt has it all about covered. Rotate tires and report back.
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Unread 12-04-2012, 01:47 AM   #9
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My YJ:

Tires out of balance?
Most definitely

Trackbar mount and bushings ok?
Don't have one

Steering stabilizer ok?
Don't have one

Bushings on CAs worn out?
Don't have those on the front but the leaf spring ones are shot.

Got death wobble?
No


Posts like these make me very afraid to build up my wife's grand
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Unread 12-04-2012, 04:33 AM   #10
team1k
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Also I'm no expert in alignments but shouldn't all those red items be green? Red bad green good? Seems like that's an issue.
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Unread 12-04-2012, 09:47 AM   #11
801DubJay
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Quote:
Originally Posted by team1k View Post
My YJ:

Tires out of balance?
Most definitely

Trackbar mount and bushings ok?
Don't have one

Steering stabilizer ok?
Don't have one

Bushings on CAs worn out?
Don't have those on the front but the leaf spring ones are shot.

Got death wobble?
No


Posts like these make me very afraid to build up my wife's grand
Seems like you're comparing apples to oranges! I can tell you that the Oranges are known for DW after being lifted, but it is maintainable. However, it does require a little more attention than other rigs.
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Unread 12-04-2012, 10:09 AM   #12
Tuffjeeper
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I know that the suspension designs are slightly different, but this could be part of it.

Have you checked your caster angle?

Stock jeeps are around 9* but lifted jeeps need to be around 5* caster because of the tire differences.
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Destroyed it somehow..... It went wobble wobble wobble boom
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Unread 12-04-2012, 10:58 AM   #13
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Toss your wife's tires on for a day and see how it feels. That will allow you to completely eliminate the tires from the equation.
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Unread 12-04-2012, 01:58 PM   #14
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Quote:
Originally Posted by 85IrocZ-28
Toss your wife's tires on for a day and see how it feels. That will allow you to completely eliminate the tires from the equation.
Like^
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Unread 12-04-2012, 03:07 PM   #15
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Quote:
Originally Posted by team1k View Post
Posts like these make me very afraid to build up my wife's grand
If I had a nickle for every time I've posted that on JF....
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