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Anybody familiar with the sulastic shackles for a smoother ride on the 2018 3500 dually?
 

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Search around here a bit. Another member did just this a few weeks ago and was very disappointed with the results.
 

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Springs and shocks are the problem. Put Carli 2.5” (level) or Thuren 0.5, 1.75, or 2.25” coils in the front. Run a Fox 2.0 shock from either company with their coils. Cheapest mod for the back is a overload leaf flip and block from TGC and Fox 2.0. Better is a Carli mini pack and block to replace the overload leaf. Best is a custom Atlas or Deaver spring pack. Use a long travel air bag with daystar cradle. Or Sumo springs extended bump stops. All these suggestions need a 2.0 Fox at the minimum.
This post is a few months old so if you’ve done something let us know how it worked.
 

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I ran Thuren springs (0.5”) and Fox 2.0 shocks on my 16 3500. Smoothed it out a bit. Running slightly lower pressures in the tires helps a lot too.
 

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My Thuren 1.75" coils and Fox 2.0 made a huge difference in ride. For a dually I would probably go with the .5 coils from Thuren.
 

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Kelderman 2 stage air bag system provides an incredible ride compared to stock springs.
 

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Smoother ride
Anybody familiar with the sulastic shackles for a smoother ride on the 2018 3500 dually?

What tire pressure are you running?
 
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