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Friend needs help with Death Wobbles in a 2wd!?

Discussion in 'The Garage' started by Eric M., Oct 10, 2006.

  1. Eric M.

    Eric M. 1/2 ton status

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    Can anyone point me to a site that might be able to help my buddy out? He's got a 2wd, 75 GMC dually that experiences death wobbles at about 80 MPH. Yes, I told him a 75 GM dually was never built to go 80, but, he's owned it for years and it never Wobbled before.

    All the front end is new, new steering box, alum. Weld rims, he's tried several sets of tires.

    I've never heard of DWs on a 2wd :confused: and I've got three 2wd 1 tons with about 200K miles on each.

    HELP!!!


    Thanks,

    Eric M.
     
  2. camok5

    camok5 1/2 ton status Premium Member

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    At first I thought death wobble didnt happen on 2 wheel drives but for some reason a couple of my work trucks (99 or newer F-350's) have been getting it really bad and at freeway speeds none the less. All I know is that its cause by bad harmonics in the front end. Not sure how to fix it on a 2 wheel drive other than making sure everything in the front end is in good working order and if that dosent work try adding a steering stabalizer.
     
  3. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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    Centrimatics maybe?
     
  4. Eric M.

    Eric M. 1/2 ton status

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    What's that?


    Eric M.
     
  5. sweetk30

    sweetk30 professional hooker Premium Member

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    tires? radial or bias?
    also any severe chopping or possible belt bad. not real comon anymore but i would not second guess on a dually 1ton.

    play in the steering box ?

    possible rotor cracked or brake hanging up.

    and is it in the steering wheel ? = frt problem

    or in the floor or seat? = rear problem.
     
  6. sandawgk5

    sandawgk5 3/4 ton status

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    I had a 2wd LUV that had DW and it turned out to be the TRE were worn out allowing the wheels to move somewhat independently.

    Ira
     
  7. Eric M.

    Eric M. 1/2 ton status

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    Thanks,

    Eric M.
     
  8. k204dr

    k204dr 1/2 ton status

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    are the shocks good? if they're new, are they cheap shocks?
     
  9. Slapperbar

    Slapperbar Retired Navy NDT Examiner Premium Member

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