Shake it up

Discussion in 'Street Suspension' started by Massfloefi, Jun 4, 2018.

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  1. fozzi58

    fozzi58 Full Access Member

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    The roads up here suck. Potholes everywhere. I almost hit a small 'crater' on 287 heading up to Nyack last week.
     
  2. Massfloefi

    Massfloefi Full Access Member

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    By definition this sounds similar to my problem. Unfortunately my shuddering just doesn't happen while traveling down the road at 40 mph randomly.
     
  3. Massfloefi

    Massfloefi Full Access Member

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    *Update*

    Had the idler arm bracket changed yesterday. Improved steering feel and i believe improved shaking at lower speeds. Driving back to Nyc from NJ on long sweeping turns at turnpike speeds and choppy bumps it is still present.
     
    Last edited: Jun 13, 2018
  4. Tahbro

    Tahbro TYF Newbie

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    stupid question but have you checked for a bent wheel? also check to make sure tires aren't separating. I had a tire start to separate and the vibration felt like a terribly balanced wheel on the freeway.
     
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  5. Merc1973

    Merc1973 Full Access Member

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    I too had a bend wheel that that caused vibrations.
     
  6. Massfloefi

    Massfloefi Full Access Member

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    Not a stupid question. No I have not yet but I would think the shaking would be present at all times if it was a bent rim.

    It seems like there is no damping of the shocks over these types of road imperfections. A chop in the road, a large pothole or a highway traverse causes a vibration/shimmy/shake that starts in the front suspension and seems to travel through the chassis and the cabin. There has been a reduction during straight line travel and I believe lower speed sweeping turns after the idler arm bracket was changed.

    Mechanic looked it over and couldn't figure it out. Guys were honest and admitted to not being suspension experts. They did indicate that pushing down hard on the front end felt like the shocks had no give. They suggested maybe trying to run my tire at a lower psi (I run stock 30) and removing the front jouncers to see if there was some kind of improvement.

    I have removed the front jouncers which I believe provided a slightly smoother ride. There has been no negative affects in hard braking or turning with them remove. I know I should probably put them back on and I will. I am guessing at this point. Maybe my shocks are having a travel issue?
     
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  7. Massfloefi

    Massfloefi Full Access Member

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    Yes they do. Im surprised there aren't more members complaining about suspension issues because of the roads here.
     
  8. Tahbro

    Tahbro TYF Newbie

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    a bent wheel will present itself at different times depending on how bad it is. just like the balance of the tires. if they are close to perfect you normally wont be able to tell until about 60-70 but eventually will drive out of the vibration the faster you go. with tire separation you will feel it all the time.
    can you explain a little more. does it happen only when hitting bumps on the freeway? do you feel the vibration or hear it? does it continue after you've hit the bumps? smooth highways at any speed is there an issue? you say vibration, shimmy, and shake all are a little different to me so im trying to pin point it but not sure. a vibration could be small were as a shimmy could mean crossing into another lanes and a shake seems more like a wheel out of balance. sounds like you've done a lot of work to the front end so far so a lot could be ruled out. Just out of curiosity has the truck ever been lifted or lowered? could the torsion bars have been changed to aftermarket? have they been lifted or adjusted in any way? Also do you get bump steer?
     
    Last edited: Jun 14, 2018
  9. Massfloefi

    Massfloefi Full Access Member

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    Last edited: Jun 16, 2018
  10. Massfloefi

    Massfloefi Full Access Member

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    So I think I maybe getting closer to a solution. If you watch the video you can see a slight wobble in the wheel. Watch to the end you will hear a noise as well. I would ignore the creaking since I believe that was the faulty idler bracket but you can hear the wobble noise quite well. I am thinking bad wheel hub assembly?



    The passenger side seems to be making more of the sound found in a failed bearing?

     
    Last edited: Jun 16, 2018

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