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Vibration Question

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by DPI, Jun 30, 2000.

  1. DPI

    DPI 1/2 ton status

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    I have a question for the group. I have a stock 1990 K5 with no lift. I am getting a vibration only under heavy acceleration when the rpms are above 3K. It does not matter what gear its in or how fast I am going. Mileage is are 106K. Any Ideas?
     
  2. MudFrog

    MudFrog 1/2 ton status

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    Did ya check your U-joints?

    89 K5 Silverado
     
  3. Burt4x4

    Burt4x4 3/4 ton status

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    Yep sounds like a Ujoint
    If they are the factory ones the retainers may be the plastic injection type.?? If so you need to use a heat tourch to melt out the little injection holes on both side of the ujoint. When you do this keep your feet back and heat with the hole pointing down and the burning plastic will drip out, turn around and do the tother side.
    Replacements just use the C clips to retain the joint
    Good Luck

    Rock ON![​IMG] 72 K5 [​IMG] Led Zeppelin
    http://burt4x4.coloradok5.com
     
  4. JimmyDie6.2

    JimmyDie6.2 1/2 ton status

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    also check the weights on the drive shaft(s), see if one fell off.
     
  5. Eagle86K5

    Eagle86K5 1/2 ton status

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    Also check all your mounts, tranny and motor mounts....

    <font color=green>[​IMG]Eagle86K5[​IMG]<font color=red>
    Masonry...It's a Good Thing
    2B1ASK1
     
  6. Hayduke

    Hayduke 1/2 ton status

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