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24 Sierra Denali drop shackle vibration

DwDrummer
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DwDrummer Enthusiast

DwDrummer

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I have a brand new Sierra Denali that I had a set of Maxtrac drop shackles put on to take the rake out but like a lot of people here I have the annoying vibration from 28-22MPH on deceleration, and have noticed the longer I drive the truck the worse it gets. Looking through the drop shackle thread below I noticed that some trucks have factory shims that can be turned to fix the issue however my truck does not have them. I like the look it gives the truck but was wondering if anybody on here has a Denali or a Sierra that did not come with factory shims that has come up with a fix besides removing the drop shackles? :D  I will say it does not have the vibration if I put it in neutral. I will post a link to the shackles that I used. Any help will be much appreciated! Thanks!

 

https://maxtracstore.com/2019-2023-chevy-gmc-1500-w-adaptive-ride-control-2-rear-drop-kit-maxtrac-712120mr/

Low Elevation Enthusiast

Low Elevation

Posted
Posted

I used the belltech 2'' drop shackles on my previous 2wd truck and had no issues. Maybe try those instead if you cant find a fix. 

DwDrummer Enthusiast

DwDrummer

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I got up with Maxtrac yesterday and talked to JJ in tech support and was told to do a set of 2 degree leaf spring shims and that should clear up any vibration. Praying it does the job!👍

DwDrummer Enthusiast

DwDrummer

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Update 2degree shims seem to have taken the vibration away, haven’t driven the truck much but so far so good. 

davidr83 Enthusiast

davidr83

Posted
Posted

For what its worth, i used the 2 degree shims when at the smae time i installed drop shackles at max 2" drop on my 2020 elevation 2wd with the 3.0 Duramax cc shortbed and had no vibration. I removed them when i traded it in for my 2021 rst 6.2 4wd and put the exact same ones on the new truck at the 1.5" drop setting without the 2* shims and have had no vibration in 46k+ miles that ive put on this truck.

DwDrummer Enthusiast

DwDrummer

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2 hours ago, davidr83 said:

For what its worth, i used the 2 degree shims when at the smae time i installed drop shackles at max 2" drop on my 2020 elevation 2wd with the 3.0 Duramax cc shortbed and had no vibration. I removed them when i traded it in for my 2021 rst 6.2 4wd and put the exact same ones on the new truck at the 1.5" drop setting without the 2* shims and have had no vibration in 46k+ miles that ive put on this truck.

Thanks, I’ve had them in for 6 days and no vibrations since:) 

  • 2 months later...
Tjjp New Member

Tjjp

Posted
Posted

Just installed maxtrac on my 24 denali, getting same vibration. Can you provide link to shims? Also, easy install? Thanks in advance!

DwDrummer Enthusiast

DwDrummer

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Posted (edited)

I get it man I wasn’t driving my truck a whole lot it was driving me crazy but loved the way it looked lowered😎

Edited by DwDrummer
Tjjp New Member

Tjjp

Posted
Posted

Yeah, I did same lowering on  my 20 Elevation with no issues, and yes the level looks so much better. I guess the vibration is luck of the draw. As long as this works, I'm good! 

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