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For anyone that had warranty leaf spring isolators installed, did it fix the issue?

MichLakes

By MichLakes
in 2019-2025 Silverado & Sierra

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MichLakes Enthusiast

MichLakes

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My truck has 6k and it has clunked pretty much since new when turning and rocking side to side.  I'm fairly certain this is the TSB about the leaf spring isolators needing to be replaced and the U-bolts being re-torqued to spec.

 

For any that have done this, did it fix the issue and does it seem like the fix is going to last?

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Jav_eee Enthusiast

Jav_eee

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I would like to know too, I checked mine a few weeks ago and it was not to the factory spec( min 140 degrees off).
 
1365387892_U-Bolttorque.thumb.jpg.70f6095e54250ac795f8ee442be29af4.jpg


Just read through TSB 18-NA-183. What exactly was out of spec? I didn’t see any reference to any kind of degree.


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BlancoSilverado Enthusiast

BlancoSilverado

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1 hour ago, Jav_eee said:

 


Just read through TSB 18-NA-183. What exactly was out of spec? I didn’t see any reference to any kind of degree.


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I dont have the TSB, i check my -bolts and noticed that they were not to spec.

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Jav_eee Enthusiast

Jav_eee

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They keep slapping grease between mine and it works for a little while then I'm back to squeak-ville

They need to ask Ford who they do it. My old work truck probably did 100k miles on dirt/mud roads and NEVER made a peep


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Computerdog New Member

Computerdog

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I have a 17 and took it to three shops and one being the dealer. Found out today after the third shop that it was the leaf spring. When you push the truck bed you can hear the clunky noise. Going to dealer next week with the papers about the service advisory and going to push on the bed to show the noise. 

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