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Chevy Shake

Sierradude

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HondaHawkGT Senior Enthusiast

HondaHawkGT

Posted
Posted
6 hours ago, Sierradude said:

Anybody experience the dreaded Chevy shake between 70 and 80mph yet? Has this problem been corrected with the new trucks?

Considering it wasn't all that common on the 14-18's, you might have to wait a lot longer to have enough 2019 trucks for a decent sample size.

HondaHawkGT Senior Enthusiast

HondaHawkGT

Posted
Posted

GM is beginning to manufacture their own version of the 12-bolt in Michigan. The lack of quality control at AAM was a big contributor to the vibration some had. GM also totally redesigned the frame, increasing rigidity targeting a higher natural resonance. Perhaps that will make it less sensitive to wheel and tire balance.

Sierra Dan Senior Enthusiast

Sierra Dan

Posted
Posted

Tightening my leaf spring nuts made my very mild shimmy between 70 and 80 go away.

It was there, but nothing like some have reported here.

Cmillerjr Enthusiast

Cmillerjr

Posted
Posted

I have not noticed any type of shake. I was on the PA turnpike last night holding at 75 for about 40 miles and it was a smooth ride. 

Donstar Senior Enthusiast

Donstar

Posted
Posted
On 9/9/2018 at 10:13 AM, Cmillerjr said:

!!UPDATE!! Just over 1100 miles, still no shake. Rides just as smooth as day 1. 

I don't know why you haven't received your thumbs up emoji yet but you should be getting one!  After 1100 miles, have you noticed an improvement in fuel economy?  I don't mean actual numbers but just general impressions.  I remember this was very noticeable when moving up from my previous two generations of GM's.

Cmillerjr Enthusiast

Cmillerjr

Posted
Posted

Yes,  I noticed it after 500 miles or so. When I first got it I was averaging 16 mpg . Now I am averaging 17-19. 

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