Looking for some help here. We just purchased a 23’ Expedition limited and after just 1500 miles the ride quality is absolutely garbage. It’s been to 2 dealers since, both of which say it rides to spec. The vibration is the worst at highway speeds, 75-80. I’ve heard they have issues with the driveshaft but both dealers have said they cannot feel the vibration. (Both dealers tested on back roads only). I’ve been taking videos and even order vibration sensors so I can document what we feel. Any info on noise and vibration specs would be helpful as well.