1999 Chevy Tahoe At speeds 60 and above entire car shakes

Tiny
SAM8642
  • MEMBER
  • 1999 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 80,000 MILES
Tires are wrangler rts 265 75 r16 with 9k on them. Cars always vibrated a little and balancing has helped but not fixed the problem. Front pads and rotors have also worn considerably for 9k milege of use. Mechanic says about 10% is left on them. Vibrations are seen in the dashboard and sears as well as felt through the wheels. The tires standard on these trucks were 245 but the dealer I bought it from said 265 was also an option and shouldn't affect anything. Have run out of ideas. Balances get thrown off easily from the vibrations. What steps should I take to fix and will the vibrations besides annoy me damage the truck?
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Sunday, February 14th, 2010 AT 4:07 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
The 265 is an optionial size, so that shouldn't cause a problem for you. Have they checked for a bent rim? Alignment? Can you drive throught the vibration. For example, if you feel it at 60 does it go away at 65?

Let me know.
Joe
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Monday, February 15th, 2010 AT 10:12 AM
Tiny
SAM8642
  • MEMBER
The faster I drive the more the vibration increases. Just came back from running it on the highway and balancing the front tires has helped a lot but it pushed the threshold of the vibration to around 70. So it still vibrates just at a higher speed. Rims have been checked as well as alignment. Any ideas about a bearing that's worn or could it be connected to a warped rotor? I'm assuming it's unusual for the balancing to be thrown off every 3k or so.

Thanks,
Sam
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Monday, February 15th, 2010 AT 12:47 PM

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