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.
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.