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vibes from front end

Discussion in 'Suspension' started by pataco, Jan 4, 2009.

  1. Jan 4, 2009 at 5:18 PM
    #1
    pataco

    pataco [OP] Well-Known Member

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    anybody out there had vibes when they installed 3'' spacer with aal??????ive got one and need help before i do something crazy and take it off.i was wondering if when you take out the front springs if they have to go back in the same way??now after install when i look in the fender well i see red/orange and white markings on the springs,which i did not see before.that is the only thing that i see that i might have done wrong.the KIT said nothing about that weather wrong or right.ive been in contact with some of the members from here(thank you) and i just cant figure it out.i would love to do the c/o and uca's but that is not an option now.the only thing i have left is to go back to stock(euwww) and hope to god it goes away$$$$$$$.thanks ahead for any imput.
     
  2. Jan 4, 2009 at 5:24 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    What kind of vibes are you haveing. Are they fron ther front, rear, all around?
     
  3. Jan 4, 2009 at 5:37 PM
    #3
    pataco

    pataco [OP] Well-Known Member

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    def. from the front the vibes start at 10ish to 55ish mph.when i put it in 4x4 they go away.i had this topic up on the 1st i think of jan.still didnt get anywere.im at wits end with it because this truck WAS so smooth and quiet before a SIMPLE lift was added.now it reminds me of the old chevy truck i used to have(piece of crap).ive tried diff. shim variations on the carrier and the front diff.nothing is working but i cant make it worse.thanks
     
  4. Jan 4, 2009 at 5:56 PM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    Has it been aligned? Im assuming the tires are ballanced.
     
  5. Jan 4, 2009 at 6:06 PM
    #5
    sonjay

    sonjay Well-Known Member

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    SnoBoarder, has been working on a theory that the front diff is misaligned. I've been messing with it a bit(its damn cold all the time) and it seems to be helping.
     
  6. Jan 4, 2009 at 6:30 PM
    #6
    ETaco23

    ETaco23 Marshall offroad Fabrication

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    I would guess front diff, bc I had or have sometimes a slight vibe in the front aswell. The diff drop helped it out. Either that or tire issue, alignment or ballance.
     
  7. Jan 4, 2009 at 6:32 PM
    #7
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    Send a PM to Snowboarder, and he can tell ya what he did on his truck. It helped quite a bit.
     
  8. Jan 5, 2009 at 2:26 AM
    #8
    pataco

    pataco [OP] Well-Known Member

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    thanks to all,i was in contact with snowboarder(hes not to far from me 2hrs).i did get his thery on paper and it was what i was thinking(awsome).im just concerned about replacing exspensive parts down the road,how far down,dont know.i just figured it was a simple thing to bolt on and go with no issues.just my luck.i just dont have the time(work,family,kids sporting event ect)to keep messing with it.we have a jeep that we go wheeling with (im a clean freak with my truck)i thought it would be cool if my tow rig had a lift as well.for now im going back to stock with it and install a set of air bags on the rear.i do thank everyone with their imput greatly. to be continued
     
  9. Jan 16, 2009 at 12:12 PM
    #9
    SnoBoarder

    SnoBoarder Hardcore wheeler, try and keep up.... if you can.

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    I had pretty good luck with a specific vibe. I wanted to try a Diff Drop thinking it might help with a vibe that had been slowy increasing in intensity over the past 6 months. I had the diff drop kit laying around so I thought I'd try it out. Bad idea. I caused a brand new and rather intense 10-15 and 40-45mph vibe as soon as I installed it. The weird thing is the vibe remained just as intense even after I removed it. I was surprised because I expected that removing the diff drop and returning it back to the way it was would take me back to my relatively vibe free condition. I was really unhappy :mad: to put it nicely because that didn't happen, it was absolutely miserable to drive at certain speeds.

    So I thought about it and deduced that when I broke the front diff mounting bolts loose and installed the drop spacers, I caused a small shift in the front diff position and had not returned it to exaclty where it was positioned originally or I had not acheived the same torque level from the factory installation, or a little of both. There's a small amount of play with the 2 main mounting bolts and brackets and I used a 2 foot breaker bar to break the bolts loose originally, and they were really tight, so I think this is plausible.

    Anyway, I seemed to get it back to where it was with some trial and error, or maybe I just got lucky, IDK. :) I really can't know for certain because I made no measurements but the pic shows how I tried to pry it a little and I did push those bolts a little past spec, to at least 110FT/LBS while prying against the bracket. Maybe this is all BS, I'm not an auto mechanic, but I sure noticed when I hit the sweat spot because that miserable vibe was gone.

    [​IMG]
     
  10. Jan 16, 2009 at 12:52 PM
    #10
    pataco

    pataco [OP] Well-Known Member

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    thanks im going to try that.
     
  11. Jan 16, 2009 at 4:59 PM
    #11
    sonjay

    sonjay Well-Known Member

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    I measured from the bolt on the lower control arm to the metal band on the CV boot with a string hanging off it, I got it as close to the same as I could measure. I still have some vibes tho, 28-35mph or so. I think it might be a tire issue though.
     
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