70 plus MPH there is shaking/vibration/shimmy

Tiny
NICKBAMA14
  • MEMBER
  • 2006 CHEVROLET TAHOE
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 260,000 MILES
I have replaced rotors (all 4), replaced front wheel hub assemblies, had tires balanced and rotated and an alignment. Once I reach 70 MPH it experiences mild shaking/vibration very similar to tires out of balance, but it's not that. What else could be the cause? Thank you in advance!

Kindest Regards,
Nick
Sunday, February 28th, 2021 AT 4:53 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 52,325 POSTS
It sounds like you need lower ball joints or tie rod ends. do this: jack the front of the car up just enough to take the weight off but allowing the tires to still touch the ground. then move the front wheel back and forth up and down to see which is loose. these guides can help us:

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

and

https://www.2carpros.com/articles/steering-wheel-shakes-when-accelerating-or-braking

Let us know what happens and please upload pictures or videos of the problem.
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Monday, March 1st, 2021 AT 6:49 PM

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