Question about Chevrolet Silverado 1500

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My 2001 silverado 4wd 5.3, hums noticeably in the cab when accelerating around 30mph + I do have a leak rear t-seal and both front t axles and have filled the front thinking that was the problem however nope still humming as if out of balance i guess the truck has 280,000 miles lol

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  • Chevrolet Master
  • 45,620 Answers

When you say humming as if out of balance you may have ansqwered your own question. Tail shaft vibration comes in aroun 30 mph and the points I would look for are loose uni joints or a lost balance weight from the tail shaft. To check uni joints look for rust streaks from cross.The next step is to grab firmly either side of the joint and see if there is any movement while twisting you hands in opposite directions. next lift one half of the cross and check for movement in the bearings repeat this at all uni joints check the tail shaft slip joint by trying to twist each half and check for up and down movement at this spline. front shafts fail more readily than rear ones

Posted on Jan 06, 2013

  • William Horton
    William Horton Jan 12, 2013

    I have got under the front end and grabbed the driver side axle near the front differential and i could lift it some. also the humming almost goes away after I let of the gas weird! there also is clicking sorta when i lifted the front up and spun the tire and could hear clicking from differential. If it is the front diff can I take the front axles out and drive it cause my truck looks to have very costly diff;s and transfers lol heavy duty compared to friends dodge 1500

  • Bill Boyd Jan 13, 2013

    From your comments it appears that you have an independant front end. When you spin the tyre and there is a clicking sound this indicates that a cv joint is faulty. Normally this can be heard when turning a corner and going slow then the joint clicks as it moves in and out of the worn section. IF you have a left and right axle with the diff mounted to the chassis you have more than likely found the fault Have the axle checked by a mechanic for confirmation Replacement of the shaft will take around 2 hrs or less if a mechanic knows what he is about

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Humming noise in front end of truck

I'm having the same problem with my 2006 Chevy 2500 duramax...The humming starts at 25mph and then gets less prominent and then at 50mph it gets more prominent and louder, then at 60mph you can hardly hear it.....I did notice a little bit of leakage where the front axel meets the from diff on the drivers side.
Any suggestions?

Posted on Aug 09, 2008

warlock61
  • 659 Answers

SOURCE: Rear Axle Leak

if it is the seal, you will have to remove the caliper and rotor, remove the differential cover and remove the bolt and pin inside the diff carrier housing. push in the axle and remove the axle clip and pull out the axle use a seal puller or prybar to remove seal reverse the steps to assemble

Posted on Dec 10, 2008

raineystorm
  • 23 Answers

SOURCE: instructions on replacing rear axle end oil seals 90 silverado pu

Where's it leakin?

Posted on May 12, 2009

cshubart
  • 146 Answers

SOURCE: how do you a Replace rear axle seal

first drain fluid and remove diff cover take off tires theres a c-clip in the diff that needs to be removed so you can take the axles out the seal is behind the axles pull old ones and install new replace c-clip and cover fill with recomender diff oil you should be good

Posted on Oct 07, 2009

  • 1 Answer

SOURCE: how to change my front differential seal and

if ure changing passenger side a washer will drop behind the 4x4 shift fork in the diff as soon as u pull the cv axle out and u will have to drop the axle tube to reinstall this

Posted on Mar 01, 2010

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