Vibration 3500 Dually

[Ralph Topper]

2019 3500 Denali crew cab dually, vibration in rear of truck over 60 mph, vibration from the day I picked it up and got on PA turnpike, tires were balanced 2-3 times to no avail. Dealer put PICO unit on and drove but found nothing. Has anyone had the same issue, it feels like a driveshaft balance issue, I had the same thing on 2007 Silverado crew cab with single rear wheel, driveshaft was balanced and perfect after that.

I have 26K miles and need fixed before we get to the 36K end of warranty. 

[Josh42089]

On 3/9/2021 at 7:20 PM, Ralph Topper said:

2019 3500 Denali crew cab dually, vibration in rear of truck over 60 mph, vibration from the day I picked it up and got on PA turnpike, tires were balanced 2-3 times to no avail. Dealer put PICO unit on and drove but found nothing. Has anyone had the same issue, it feels like a driveshaft balance issue, I had the same thing on 2007 Silverado crew cab with single rear wheel, driveshaft was balanced and perfect after that.

I have 26K miles and need fixed before we get to the 36K end of warranty. 

I’m going through the same thing. I have a 2021 1500 crew cab. I notice it the most going between 50-65 Km. I took it to the dealership and they checked the tires and 2 were out of balance. Only had the vehicle a few weeks. They said they test drove it after that and all was fine. I still notice though. Roads are fairly smooth. You can feel it in the seat.