Vibration @40 mph

Discussion in 'Member Introductions' started by 783, Aug 22, 2012.

  1. 783

    783 New Member

    Hello everyone,
    I have a 2004 GMC 2500 HD with a 6.0 liter, at 40mph it starts to vibrate, mainly felt in the seat. The vibration is pretty strong from 40 to 55mph, then it lightens up. I had the tire balanced and moved around from front to back,the engine and transmission mounts, u joints, ball joints and the engine at a cost of $500.
    All checks out good!
    The mechanic is know guessing, he is telling me that the bushing at the end of the transfer case is going bad? ( where the yoke and drive shaft connect.)
    Can anyone help before I go bankrupt....

    Thanks...
  2. Curky

    Curky New Member

  3. BIGG BOY

    BIGG BOY New Member

    When you rotated the tires did it seem to changed were the shaking coming from you may have to get your tires trued you may have an out of round or belt in the tire seperate
  4. Curky

    Curky New Member

    now that i'm thinking about it, this happened to me in my last GM car. I will try and look up the receipt but I know it had to do with some thing in the searing column. In my case it was but same thing you described.
  5. Pikey

    Pikey Moderator

    Is the vibration in the front? Wheel hub? axle shaft?
  6. McClintoc

    McClintoc Super Moderator

    Do you have factory or after-market wheels?
  7. SurrealOne

    SurrealOne Former Member

    I'm at a bit of a loss, myself, on your issue but wanted to take a moment to welcome you to GMTC. Good luck getting the issue resolved!
  8. donyms

    donyms New Member

    Welcome to the club, it's good to have you with us. :glasses:
  9. Conlan Rose

    Conlan Rose Super Moderator

    It might be your tie-rod ends that's one of the reasons my truck shakes like crazy on the highway. If you have play in the steering while driving a speed I'd check that out. Usually you can feel the front end shaking more than the rear.
  10. 783

    783 New Member

    Thanks for the respond, when we rotated the tires there was no change in the vibration.
  11. 783

    783 New Member

    Thanks for responding, the wheels are factory.
  12. 783

    783 New Member

    There is no play or shaking in the steering wheel, you feel the vibration in the seat.
    Thanks for the respond.
  13. 783

    783 New Member

    Thanks for the respond, The vibration is felt in the seat, when I put it into 4x4 there is no difference. I'm thinking if it was a a axle shaft
    I would feel it more when engaged in 4x4.
  14. Conlan Rose

    Conlan Rose Super Moderator

    How many miles are on the truck? Because another possibility is either your shocks are warn which would not allow your tires to stay on the road efficiently enough and exaggerate any bump or unevenness in a road. Other is you body mounts might not be absorbing the vibration like they are meant to.
  15. 783

    783 New Member

    The truck has 64,000. They do look a little rusted up. But it doesn't seem to make a difference if the road is smooth or bumpy, it still vibrates at 40 to 50mph.There isn't a lot of money in replacing the shocks so that might be the next step.
    Thanks for the info.
  16. Conlan Rose

    Conlan Rose Super Moderator

    No problem see if it helps any. Heck even if it doesn't fix the problem you'll have new shocks!
  17. Gpana

    Gpana New Member

    welcome to the club....:great:
  18. Jasonajwilson

    Jasonajwilson New Member

    Did you ever figure out what tge cause was?

    - - - Updated - - -

    Did you ever figure out what the cause was?
  19. retired2001

    retired2001 New Member

    Welcome to the G M T C !

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