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Thread: Death wobble?

  1. #21
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    Default Re: Death wobble?



    I have to say that I have been doing this along time and I have never seen sway bars, short arm lift, coil spacer nor the rear shackles directly cause dw. The alignment certainly can but caster needs to be checked and that can't happen with a tape measure. Short arms/coil springs spacers could cause an issue where it threw caster off but adjustable arms could fix that and so could long arms. The rear suspension has nothing to do with the front shouldn't have an effect on dw. The tires could be a culprit for sure so I would start there and get a computer alignment and see what it says there. I would hate to see someone through parts at it.

  2. The Following Member Says Thanks to gm4x4lover For This Post:

    Salsa91 (November 12th, 2014)

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    Default Re: Death wobble?



    94ToyBear previously posted:
    "Unless I skipped in in someones reply I havve not seen any one mention anything about the steering stabilizer.
    I dont belive it will fix the issue but can defiantly help.
    I vote track bar to be the main issue.

    Have you looked in the the stabilizer at all ?"

    They did mention that last night. Seems like it's gojng out. If it isn't too expensive I'll pick one up today.

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    Default Re: Death wobble?



    On the other hand, since I replaced the tie rod ends on Monday night, I haven't had the wobble. I'm not sure if I haven't hit a big enough pothole yet but I'm praying it's gone. All I have now is the wander which was reduced last night after tightening up the steering box but it still wanders enough to where sometimes it feel like I'm going to hit the guy in the lane next to me.

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    Default Re: Death wobble?



    Salsa91 previously posted:
    "On the other hand, since I replaced the tie rod ends on Monday night, I haven't had the wobble. I'm not sure if I haven't hit a big enough pothole yet but I'm praying it's gone. All I have now is the wander which was reduced last night after tightening up the steering box but it still wanders enough to where sometimes it feel like I'm going to hit the guy in the lane next to me."

    stabilizer can defiantly help with this too. I still think track bar will have a part of all this.

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    Default Re: Death wobble?



    Salsa91 previously posted:
    "I had it on the lift today and with the tires in the air I did the push/pull test on the ball joints and they seem pretty solid. However, on the side to side test(? pushing on the front and rear of one tire testing the tie rods) it seemed loose at first but a lot stiffer and solid after the new tie rod ends. With the wander, does that usually relate to the trac bar?"

    explain more how you tested ball joints. I have never done a "push pull'' test for ball joints.

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    Default Re: Death wobble?



    94ToyBear previously posted:
    " I still think track bar will have a part of all this."

    X2 On the track bar. Have a freind start the rig, hold the brake & pulse the wheel (short strokes) and look at the ends..
    Also look at anything than is moving more than it should..
    Also lower steering shaft (Rag joint ). That will cause a lot of problems !!
    ___________
    In a never ending search for the proper mix of dirt & rock !

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    Default Re: Death wobble?



    94ToyBear previously posted:
    "explain more how you tested ball joints. I have never done a "push pull'' test for ball joints."

    Left from the axle, Place on jackstand. grab the tire at 12 and 6.
    As you pull out on the bottom push in on the top, then in on the bottom & out on the top..
    Also a pry bar of some type, Place under the bottom of the tire & pry up.
    Look for movement other than a pivot .
    ___________
    In a never ending search for the proper mix of dirt & rock !

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    Default Re: Death wobble?



    Yes done it many times. How ever if it's on a lift and lifted by the frame it will bind the ball joints and you won't see any movement.

  10. #29
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    Default Re: Death wobble?



    Was this a rreply to what I asked ??
    gm4x4lover previously posted:
    "Yes done it many times. How ever if it's on a lift and lifted by the frame it will bind the ball joints and you won't see any movement."


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    Default Re: Death wobble?



    It wasn't a frame lift. I should've clarified that. The steering box internals seem loose. So, not having sway bars should be ok?

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    Default Re: Death wobble?



    I would still get them cause driving 40+ mph on the on any road is not a fun wobble.

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    Default Re: Death wobble?



    gm4x4lover previously posted:
    "I have to say that I have been doing this along time and I have never seen sway bars, short arm lift, coil spacer nor the rear shackles directly cause dw. The alignment certainly can but caster needs to be checked and that can't happen with a tape measure. Short arms/coil springs spacers could cause an issue where it threw caster off but adjustable arms could fix that and so could long arms. The rear suspension has nothing to do with the front shouldn't have an effect on dw. The tires could be a culprit for sure so I would start there and get a computer alignment and see what it says there. I would hate to see someone through parts at it."


    Im in trying to start with the tires. However I don't have the cash for a new set. I found some decent 35's that I'm going to try and pick up this weekend. Once installed I'll do the alignment. If I remove the coil spacers, would that help a little with my caster? In theory, wouldn't that cause the bottom part of the axle to shift forward?

  14. #33
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    Default Re: Death wobble?



    94ToyBear previously posted:
    "Was this a rreply to what I asked ??"

    No not really I should have quoted what I was replying to.

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    Default Re: Death wobble?



    Salsa91 previously posted:
    "Im in trying to start with the tires. However I don't have the cash for a new set. I found some decent 35's that I'm going to try and pick up this weekend. Once installed I'll do the alignment. If I remove the coil spacers, would that help a little with my caster? In theory, wouldn't that cause the bottom part of the axle to shift forward?"

    It could or it may not. Since we don't have a base line it makes it hard to make the correct suggestion. How much lift? How thick are the spacers? Factory lower arms, fixed aftermarket, or adjustable arms? Are the uppers factory or affermarket? The lower mounts have a slotted mount on the body side, where is that set at?

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    Default Re: Death wobble?



    And a sway bar isn't a bad idea but not everyone runs on nor does every one need one. I got sick of disconnecting ours years ago so I yanked it out. Hasn't really made it drive much different.

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    Default Re: Death wobble?



    My money is on track bar movement and bad tires contributing to the problem. A great way to check for unwanted movement at the track bar attachement points is to have a friend get in and turn the steering wheel back and forth repeatedly (not lock to lock but a few inches back and forth). While you watch the track bar, and see if there is any movement. If you have tires that large and they are worn out (or shot ball joints), even 1/16" of movement at the track bar bolts can give you DW. I live and work in Littleton, if you'd like another set of eyes on it I'd be happy to take a look and help if I can.

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    Default Re: Death wobble?



    Stu previously posted:
    "have a friend get in and turn the steering wheel back and forth repeatedly (not lock to lock but a few inches back and forth). While you watch the track bar, and see if there is any movement."

    I would suggest touching each part by hand as well. You may feel a click, or pop at the end of each turn on a part that could be worn out.

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    Default Re: Death wobble?



    track bar! they suck....cant wait to triangulated four link the jeep!

  20. #39
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    Default Re: Death wobble?



    Stu previously posted:
    "My money is on track bar movement and bad tires contributing to the problem. A great way to check for unwanted movement at the track bar attachement points is to have a friend get in and turn the steering wheel back and forth repeatedly (not lock to lock but a few inches back and forth). While you watch the track bar, and see if there is any movement. If you have tires that large and they are worn out (or shot ball joints), even 1/16" of movement at the track bar bolts can give you DW. I live and work in Littleton, if you'd like another set of eyes on it I'd be happy to take a look and help if I can."

    That would be great. If I don't get off to late tomorrow I can do it then. I'm busy Sunday so the next available time would be during the week.

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    Default Re: Death wobble?



    It will probably have to be during the week. I'll shoot you a pm and we can figure out a time and place to meet up and take a look at what's going on.

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