Hello all,
I have a 2021 ST with vibrations felt anywhere around 30mph +. Most noticeable on the interstate around 74-80mph where you can see the rear seats shaking back and forth. You can feel the vibration in the steering wheel, front seats, but much stronger in the rear seats. I have swapped wheels and tires, with the same issue present. Driveshaft and transfer case has also been replaced with no change.
Has anyone also noticed when the vibration is present, their rear seats shaking back and forth?
I’ve driven a few other 21 ST’s with similar and more mileage that do not have the same issues, so I am convinced there is a driveline issue but can’t narrow down where it is. The dealership states everything is within specification…