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Old 11-27-2010, 09:40 PM   #1
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Exclamation Track Bar

Hi guys, i have the 2010 4 doors wrangler unlimited. I've installed a rough country 2.0 4" suspension kit, a dual stability bar and XD rock stars 20" rims with a 35" tiers.

the car swerves on speeds over 90km/h and sometimes on high speed ESC lights on and the car halts for a sec or 2 which is very dangerous on high speed.

a friend told me that OEM track bar is weak and i need to install a 1" track bar.

would that solve my problem or do i need to modify anything else??

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Old 11-27-2010, 09:45 PM   #2
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First, slow the eff down. Then check to make sure your steering wheel is centered and your alignment is correct.

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Old 11-27-2010, 09:45 PM   #3
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Almost thought you said 90mph. I was going to ask how you did that.
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Old 11-27-2010, 09:46 PM   #4
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And its not a car.
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Old 11-27-2010, 09:53 PM   #5
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He said 90 km/h how is that at all fast even for a jeep?
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Old 11-27-2010, 10:00 PM   #6
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pyro_emary - I go over 55 MPH (90 KPH) on the freeway all the time, though usually I don't go much above 70 MPH (112 KPH).

The stock track bar is strong enough, but there can easily be other problems.

A lot of times the problem is simply the bolts aren't torqued down properly - especially the track bar bolts. Have you re-check the torque on the bolts?

There can be lots of other reasons, but I would re-check the torque on the bolts first.
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Old 11-27-2010, 10:06 PM   #7
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Quote:
Originally Posted by Thesnufalufagus View Post
He said 90 km/h how is that at all fast even for a jeep?
I just looked it up. It sure sounded faster than 55.
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Old 11-27-2010, 10:15 PM   #8
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I just looked it up. It sure sounded faster than 55.
Yeah, I remember when I first got a car that had MPH and KPH on the speedo I found out that 100 KPH wasn't close to 100 MPH.
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Old 11-27-2010, 10:20 PM   #9
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I like using km/h it makes my jeep seem fast .check your alignment and make sure your wheels are torqued down correctly.
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Old 11-28-2010, 07:13 AM   #10
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Sounds like the camber is off quite a bit and the rear trackbar was never secured (or the bolt broke already on the relocation bracket).
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Old 11-28-2010, 07:39 AM   #11
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Quote:
Originally Posted by pyro_emary View Post
Hi guys, i have the 2010 4 doors wrangler unlimited. I've installed a rough country 2.0 4" suspension kit, a dual stability bar and XD rock stars 20" rims with a 35" tiers.

the car swerves on speeds over 90km/h and sometimes on high speed ESC lights on and the car halts for a sec or 2 which is very dangerous on high speed.

a friend told me that OEM track bar is weak and i need to install a 1" track bar.

would that solve my problem or do i need to modify anything else??
Whenever you do some work on suspension lift, your caster and toe will change.. This, combined with other tires, will create a different pneumatic trail (rubber contact of tire with the ground) This "trail" projection in relationship to the SAI projection point will determine your steering dynamics..
Get a good reading first.. I believe your caster will be very low and this creates for sure steering "wandering"..
This is a good start in m book.. Just helping..

p.s your steering system centering might have been affected as well.. This centering is important to have correct a ESP function.
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Old 11-28-2010, 08:10 AM   #12
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Thanks, Frank; I meant caster, not camber...
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Old 11-28-2010, 08:16 AM   #13
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I believe Daggo has already asked this question but Is your steering wheel centered? The problem you are describing is identical to the one I noticed immediately following my lift.

I'm told that the centering of the steering wheel is an adjustment that you can make yourself but I took mine in for a front end alignment immediately and all problems were corrected with the alignment.

The ESC looks at the steering wheel position and will cause problems if the wheel isn't centered properly and you are going to need an alignment anyway.
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Old 11-28-2010, 10:01 AM   #14
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Thanks, Frank; I meant caster, not camber...
It's that cow and related "emissions" in your signature which is influencing you...
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Old 11-28-2010, 10:29 AM   #15
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heh Heh, yea with that much of a lift, without changing your LCAs, your caster is down to near or at "O" and that makes your tires/steering wander and don't have any reason to "TRACK"-

You should get adj LCAs and then they can do your alignment correctly, with the stock JK, the Camber/Caster can't be adjusted. without after market installations-

Good luck

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Old 11-29-2010, 07:28 AM   #16
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This is what happend to me with my RC 4inch lift. Went back with Teraflex drag link flip kit and track bar.
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