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Old 01-01-2014, 08:31 PM   #1
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All over the road

I have an LJ with a 4.25 lift and when I drive on the highway around 65mph my Jeep feels like it has a sail on it moving from side to side. Do you think if I lower my jeep to say a 2.5 lift would this prevent me from moving side to side with slight wind factor?

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Old 01-01-2014, 08:35 PM   #2
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Your rig should drive straight as an arrow if it is set up properly. When was the last time you checked your alignment?

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Old 01-01-2014, 09:14 PM   #3
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Your rig should drive straight as an arrow if it is set up properly. When was the last time you checked your alignment?
Few months ago. Did an alignment and the toe in factor as well.
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Old 01-01-2014, 10:42 PM   #4
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It is most likely your castor angle. It will make your Jeep "flighty" if not set properly. You will need some adjustable front control arms to dial it in.
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Old 01-02-2014, 06:34 AM   #5
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Check to make sure your tires aren't over inflated.
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Old 01-02-2014, 06:41 AM   #6
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Check to make sure your tires aren't over inflated.
that will make a huge difference, i run mine @ 28PSI. i still get same issue OP has at times, def when wind is blowing. i havent checked my alignment. need to do that
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Old 01-02-2014, 07:00 AM   #7
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One thing I didn't see mentioned and maybe it is because we all are assuming....but that can kinda bite us in the a$$....to make sure all the steering components, and front end suspension parts are "right and tight"....no broken welds no "loose/ sloppy" action when steering wheel is moved side to side........Granted OP's rig being an LJ it has even more "surface area" from the side to cause it to wander....and 4.25" of lift is "gettin up there a bit"...bottom line yes it would be more stable with a lower center of gravity..especially if you went to smaller tires...the question is do you NEED to do that?
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Old 01-02-2014, 05:08 PM   #8
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I currently have the front adj. trackbar with drop bracket and drop pitman arm which im soon changing to standard type.
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Old 01-02-2014, 05:37 PM   #9
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I currently have the front adj. trackbar with drop bracket and drop pitman arm which im soon changing to standard type.
Put the track bar in the stock position and get rid of the drop pitman arm. Check your caster angle. Did you get the numbers when you had an alignment done? You didn't say what front lower control arms you have, but if they are stock length, you lost most of your caster if you went up 4.25". My short wheel base TJ is up around 5" and you can drive down the highway at 70 with your hands off the wheel straight and true. The longer wb LJ should even be better. It's not the height that is the problem, it's the way it's set up. Also as mentioned above, too much tire pressure will definitely effect squirreliness.
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Old 01-02-2014, 07:02 PM   #10
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Your drop pitman arm is most likely the cause. By adding it you have changed the relationship between the drag link and the track bar, meaning they are no longer moving on the same plane which will cause your steering to move anytime your suspension moves up or down, even the slightest bit. Get that drop pitman arm off ASAP and take it for a ride before doing except maybe checking for broken parts. I bet that will solve most if not all of your problems.
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Old 01-02-2014, 07:24 PM   #11
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Your drop pitman arm is most likely the cause. By adding it you have changed the relationship between the drag link and the track bar, meaning they are no longer moving on the same plane which will cause your steering to move anytime your suspension moves up or down, even the slightest bit. Get that drop pitman arm off ASAP and take it for a ride before doing except maybe checking for broken parts. I bet that will solve most if not all of your problems.
I believe I have this problem, goes side to side really easy. 4" lift on mine
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Old 01-02-2014, 10:59 PM   #12
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Put the track bar in the stock position and get rid of the drop pitman arm. Check your caster angle. Did you get the numbers when you had an alignment done? You didn't say what front lower control arms you have, but if they are stock length, you lost most of your caster if you went up 4.25". My short wheel base TJ is up around 5" and you can drive down the highway at 70 with your hands off the wheel straight and true. The longer wb LJ should even be better. It's not the height that is the problem, it's the way it's set up. Also as mentioned above, too much tire pressure will definitely effect squirreliness.
I have front adjustable lower control arms the rest is stock for now. My tire pressure on my 35x12.50R15 is 28 psi
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Old 01-03-2014, 09:08 AM   #13
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I'd drop that air pressure to about 24 to 22 psi. 28 is more for 33" tires.

As mentioned, if you have a dropped pitman arm, pull it and put the stock arm back on it. You want the drag link and track bar to be approximately parallel.
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Old 01-03-2014, 09:48 AM   #14
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Quote:
Originally Posted by Trendsetter75 View Post
I have front adjustable lower control arms the rest is stock for now. My tire pressure on my 35x12.50R15 is 28 psi
I would check caster and toe-in, and do a dry steering test to see if there's any slop in any steering/suspension components.
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Old 03-27-2014, 05:26 AM   #15
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Will the factory pitman arm fit on a 4" skyjacker suspension lift kit? Can someone post their factory pitman arm? Not quite sure which mine is
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Old 03-27-2014, 05:34 AM   #16
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Will the factory pitman arm fit on a 4" skyjacker suspension lift kit? Can someone post their factory pitman arm? Not quite sure which mine is
Of coarse it will. DPA's are frowned on. Often not even needed. Pricey .. But there are better ways to fix geometry if a issue.

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