Problem with Highway speed with new lift. - JeepForum.com
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post #1 of 32 Old 01-16-2008, 09:57 PM Thread Starter
BPD119
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Problem with Highway speed with new lift.

Recently installed the full traction 3" lift. brand new 32x11.50x15 pro comp A/T. rancho steering stabilzer. it rides great till i hit about 65 and then the front end and steering seem to really get very loose. i can feel every bump and groove in the steering wheel and it really feels unsafe, everything is tight, i already crawled under and retighted everything including the adjustable track bar. tires are balenced fine, when i hit bumps at 1-60mph its fine real tight cant feel it in the wheel, and after i pass that highway speed threshold, it just seems to go south on me. it did not do this before the lift. any help would be great because i really dont want to go on the highway the way it is.


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post #2 of 32 Old 01-16-2008, 10:18 PM
Taylor Mefford
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My jeep does that too, in for answers
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post #3 of 32 Old 01-16-2008, 10:26 PM
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Front end alignment?

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post #4 of 32 Old 01-16-2008, 10:35 PM
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search "death wobble"


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post #5 of 32 Old 01-16-2008, 11:54 PM
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I'm not so sure that what he is describing is death wobble... can't say for sure though... One thing I DO know is that I would like to know the answer to this, and if its a common problem. I will be putting on this SAME lift in the next few weeks...
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post #6 of 32 Old 01-17-2008, 01:17 AM
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did you install a drop pitman arm? if so, this could be the culprit

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post #7 of 32 Old 01-17-2008, 04:48 AM
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Definitely get the thing aligned, then come back and tell us if you still have the problem. Should not need a drop pitman arm for 3 inches. My guess is that you have a tow issue (tow in / tow out) and your jeep starts wandering at speed because of it.

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post #8 of 32 Old 01-17-2008, 12:00 PM Thread Starter
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ok i had it aligned when i first did the lift, but it wasnt on one of the new laser machines, so i set up an alignment tomorrow on the laser machine, its not death wobble at all it just feels very loose at highway speeds.

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post #9 of 32 Old 01-17-2008, 12:05 PM
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X2 on drop pitman arm. Did you put one on with the lift? When I was looking at lifts for my jeep I found a lot on that issue. Seems the drop p arm isn't a good idea for lifts under 4 inches. I have a 3 in teraflex lift on my jeep with the stock p arm and no probs up to 80mph.
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post #10 of 32 Old 01-17-2008, 12:14 PM
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I don't think this kit comes with a drop pitman arm, but if you did install one I'm putting my money on that as well. Otherwise get an alignment and make sure the tires are perfectly balanced.


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post #11 of 32 Old 01-17-2008, 12:33 PM
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It sounds like your alignment is the issue. I would check the toe and your caster setting. Based on my experience with my lifts, with only a 3" lift you should still have castor in the high 5 degree if not right at 6 degree range.

You should not have installed the dpa if you did, unless you added a drop braclet for your tb which Im sure your kit didnt have. If you did neither are needed.

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post #12 of 32 Old 01-17-2008, 12:41 PM
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Align, balance (get a real balance -- not a tire kingdom balance), and index the tires. All straight axel 4x4's have this problem.

On the balance, take it to a good place, preferably a 4x4 place 33" tires are not that easy to balance.
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post #13 of 32 Old 01-17-2008, 12:41 PM
tj120
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maybe you just need to get used to haveing a lifted jeep instead of a stock one, they ride a little different. mines alittle crazy on the highway with no sway bars 15 psi in the tires and 6 inches of lift but you get used to floating after awhile. (or im just crazy)
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post #14 of 32 Old 01-17-2008, 12:46 PM Thread Starter
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i did not install a drop arm. i will have the front end done and see how it is and let you all know. if that doesnt do it i will have the tires road force balenced

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post #15 of 32 Old 01-17-2008, 01:36 PM
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What is your tire pressure at?

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