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Whats that noise???

Discussion in 'The Garage' started by blazen86, Dec 13, 2004.

  1. blazen86

    blazen86 Registered Member

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    So for a while now, well actually since ive owned the truck, there has been a humming noise coming from sounds like the rearend at highway speeds when i let off the gas. I just replaced the U-joints, does that mean my rear end is about to take a turn for the worst.
     
  2. 84blazin

    84blazin 1/2 ton status

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    I have that too. Sounds like a semi's engine brake going off right?
     
  3. slyguy_22

    slyguy_22 1/2 ton status GMOTM Winner

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    drain the fluid in ur rear and take a good look at it. metal water or other and i would sugg checking and and replacing the gasket
     
  4. js4x4

    js4x4 1/2 ton status

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    I was having a weird noise too....then my rear diff started to leak...my pinion nut wasn't even snug! Replaced the pinion seal, snugged the nut(used lock-tite!) and is all better...
     
  5. blazen86

    blazen86 Registered Member

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    Yep exactly kinda wierd I guess ill try to tear it down sometime in the next wk, but also another thing is it kinda jerks into gear when shifting from 1st to 2nd
     

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