post #1 of Old 04-04-2015, 04:36 PM Thread Starter
BudgetZJ
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1998 ZJ 
 
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Zj twerking problem miley fever

Aprox. 6" lift
33" tires
Front sway bar but no rear ( my main idea to what the problem will be )

Rear sway bar should i add extensions to it like in the front?

Like title says it shakes the rear like rocks side to side a lot. Not death wobble type of shaking but like boating not sure how to say it


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post #2 of Old 04-04-2015, 06:53 PM
chaZJones
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install rear sway bar with extensions

96 ZJ 5.2L 156k
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post #3 of Old 04-04-2015, 09:21 PM
firsttimeZJ13
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Sounds almost like your track bar is letting the axle walk side to side. If its physically swaying, that's where I'd start.

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post #4 of Old 04-05-2015, 04:33 AM
Timo_90xj
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Quote:
Originally Posted by firsttimeZJ13 View Post
Sounds almost like your track bar is letting the axle walk side to side. If its physically swaying, that's where I'd start.
^- This. I would also add control arm bushings. Short arms or long arms?

Swaybar controls only body roll, has nothing to do with sideways motion.

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post #5 of Old 04-05-2015, 04:58 AM
PolkaPower
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If shorts arms at that height I bet it chews through bushings in no time.
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post #6 of Old 04-05-2015, 09:53 PM Thread Starter
BudgetZJ
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Quote:
Originally Posted by firsttimeZJ13
Sounds almost like your track bar is letting the axle walk side to side. If its physically swaying, that's where I'd start.
Ita not the axle shaking its the body
Car keeps going in a straight line even with it shaking like that

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post #7 of Old 04-05-2015, 09:54 PM Thread Starter
BudgetZJ
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Quote:
Originally Posted by PolkaPower
If shorts arms at that height I bet it chews through bushings in no time.
Yea im already building long arms for it I'm waiting for tube to arrive

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post #8 of Old 04-05-2015, 09:57 PM Thread Starter
BudgetZJ
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Im gonna b installing dana44A in the rear so ill add the swaybar back it

Also long arms are being fabbed up so that will be changed cuz im not getting any downward flex

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post #9 of Old 04-06-2015, 03:17 AM
Timo_90xj
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Ita not the axle shaking its the body
Car keeps going in a straight line even with it shaking like that
If the vehicle body really moves sideways and not rolling from side-to-side, it has to be because of the connection between unibody and axle -> trackbar or control arms. Trackbar does most of that work, so my main suspect would be trackbar.

If it is a fast "wobble"- kind of movement, it could be you have bent a wheel or axle shaft mounting flange. Have you looked at your side mirrors lately, how the rear wheels/ tires look like when the rear wobbles?

1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...

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1990 XJ Limited (4-door), 4.0 I6, AW4, NP242, ***rolled and totalled @ 165k miles***

***Under construction***
1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***
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post #10 of Old 04-06-2015, 08:47 AM Thread Starter
BudgetZJ
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Quote:
Originally Posted by Timo_90xj
If the vehicle body really moves sideways and not rolling from side-to-side, it has to be because of the connection between unibody and axle -> trackbar or control arms. Trackbar does most of that work, so my main suspect would be trackbar. If it is a fast "wobble"- kind of movement, it could be you have bent a wheel or axle shaft mounting flange. Have you looked at your side mirrors lately, how the rear wheels/ tires look like when the rear wobbles?
Thanks im gonna be puttin a dana 44 complete in so its gonna be replacing al the parts everyone has mentioned So i hopes it doesnt do it with new dif in

New dif complete disc to disc
New trckbar
And swaybar back in
Custom long arms got the new bushings

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