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How is this possible??

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by rolls canardly, Apr 21, 2025.

Page 1 of 2
  1. Apr 21, 2025 #1
    rolls canardly

    rolls canardly Road Train Member

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    Feb 7, 2009
    mt. pocono. pa.
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    On my 2007 Freightliner M-2 106 I just spent $ 1000 on New tie rod,
    both new ends, New USA drums and shoes, and front end alignment.
    Drag Link is a year old with no visible slop when moved.
    Alignment shop checked king pins/bushing and they are tight.
    I even took a 6' bar and tried to move {anything} that could cause shimmy.

    At 65, it shakes like a dog shi*ting razor blades.
    After that, 68 to 75 - it's smooth as glass.
    I was always told a shake at any speed is a tire balance issue.

    I got 2 new front tires mounted and balanced for another 600 bucks.
    I watched the guy make it perfect zeros on digital readout and in balance.
    So i'm into this for over $1500 and it shakes like it needs a drink.
    Any Ideas?
     
    rolls canardly, Apr 21, 2025
    rolls canardly, Apr 21, 2025
    #1
    broke down plumber Thanks this.
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  3. Apr 21, 2025 #2
    bad-luck

    bad-luck Road Train Member

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    Baltimore, Maryland
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    Where is the shake? Is it in the steering wheel or the whole truck? Could be rear tires
     
    bad-luck, Apr 21, 2025
    bad-luck, Apr 21, 2025
    #2
    broke down plumber, Ok big boy, Big Road Skateboard and 1 other person Thank this.
  4. Apr 21, 2025 #3
    Cattleman84

    Cattleman84 Road Train Member

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    The Sticks, Idaho
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    Bad alignment would be my first guess.
     
    Cattleman84, Apr 21, 2025
    Cattleman84, Apr 21, 2025
    #3
    broke down plumber Thanks this.
  5. Apr 21, 2025 #4
    JB7

    JB7 Medium Load Member

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    Dec 13, 2022
    Laurel, MD
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    Front end shakes and bouncing?? | TruckersReport.com Trucking Forum | #1 CDL Truck Driver Message Board
    See posts 9,11,26 but read them all.
     
    JB7, Apr 21, 2025
    JB7, Apr 21, 2025
    #4
  7. Apr 21, 2025 #5
    AModelCat

    AModelCat Road Train Member

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    Jul 7, 2015
    Canuckistan
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    Not an apples to apples comparison but I had a failed u-joint on a pickup years ago. It would shudder, shake and bounce like crazy at around 68 to 75 km/h. Above or below that speed there was no shake.
     
    AModelCat, Apr 21, 2025
    AModelCat, Apr 21, 2025
    #5
    Bean Jr., singlescrewshaker and broke down plumber Thank this.
  8. Apr 21, 2025 #6
    DUNE-T

    DUNE-T Road Train Member

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    May 10, 2015
    Detroit, MI
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    Was it shaking before you started repairs?
     
    DUNE-T, Apr 21, 2025
    DUNE-T, Apr 21, 2025
    #6
    singlescrewshaker and broke down plumber Thank this.
  9. Apr 21, 2025 #7
    Big Road Skateboard

    Big Road Skateboard Road Train Member

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    May 2, 2021
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    Does it shake bobtail? If it's not in the steering wheel, drive tires would be one of my first things to look at
     
    Big Road Skateboard, Apr 21, 2025
    Big Road Skateboard, Apr 21, 2025
    #7
    Bean Jr., singlescrewshaker and broke down plumber Thank this.
  10. Apr 21, 2025 #8
    Arctic_fox

    Arctic_fox Experienced mx13 execrator

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    Sep 16, 2016
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    Could be shocks too. My pete would bounce wildly 0-60 and smooth out 60-75
     
    Arctic_fox, Apr 21, 2025
    Arctic_fox, Apr 21, 2025
    #8
    broke down plumber Thanks this.
  11. Apr 21, 2025 #9
    Goodysnap

    Goodysnap Road Train Member

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    Jul 12, 2017
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    You need to backtrack and find out when this all started. Something has changed……when did it start?

    I would start with checking for runout and out of round on the steers. Any wear on the hub pilot/ wheel mounting?
     
    Goodysnap, Apr 21, 2025
    Goodysnap, Apr 21, 2025
    #9
    Bean Jr., wore out, Long FLD and 2 others Thank this.
  12. Apr 22, 2025 #10
    rolls canardly

    rolls canardly Road Train Member

    1,600
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    Feb 7, 2009
    mt. pocono. pa.
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    Tomorrow I'm pulling both front wheel hubs and replacing all brgs.
    nothing else left.
    I have a hunch the inner bearing curbside is somewhat spalling.
    it's not yet rumbly, but it has a tone I noticed.
     
    rolls canardly, Apr 22, 2025
    rolls canardly, Apr 22, 2025
    #10
    Bean Jr. and singlescrewshaker Thank this.
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