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Front end bouncing after installing 2" leveling kit

Tiny
NATE222
  • MEMBER
  • 2015 GMC SIERRA
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 53,000 MILES
Driving down the road getting over forty mph the front end starts bouncing. Faster I go the more the bouncing gets worse? Am I in need of alignment?
Sunday, December 30th, 2018 AT 10:52 AM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi and thanks for using 2CarPros.

First, make sure everything is tight and put together correctly. You have changed the factory Z height adjustments, so the alignment needs checked and adjusted. However, that shouldn't cause the bouncing. Shocks control the bouncing.

Have the alignment checked and adjusted. If that doesn't help, the only thing left is shocks.

Let me know if you have other questions.

Joe
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Sunday, December 30th, 2018 AT 3:41 PM
Tiny
NATE222
  • MEMBER
  • 3 POSTS
Thanks. I'll go through everything again.
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Sunday, December 30th, 2018 AT 3:58 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Happy to help. I wish I had a better answer, but if it is "bouncing" the only thing I can think of is shocks.

Let me know what you find.

Joe
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Sunday, December 30th, 2018 AT 10:55 PM
Tiny
NATE222
  • MEMBER
  • 3 POSTS
Fixed the problem! Haha feel like an idiot. So when I had the truck in my shop putting in the leveling kit, all the snow melted which the snow an ice settled on my inside of rear wheel wells. Which froze when I parked it outside. Causing the wheel to be out of balance in the rear. Chipped it all out and BAM! No vibrations.
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Monday, December 31st, 2018 AT 9:15 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
OMG! That makes so much sense. Tires were totally out of balance. Wow, I'm glad you got it figured it out and fixed. When you were saying bouncing, all I could picture was a shock not connected. LOL

Regardless, great job. Let me know if you have questions in the future, and I wish you and your family a Happy New Year.

Take care,
Joe
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Monday, December 31st, 2018 AT 4:22 PM

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