Obviously the 2018s have had the engine/tranny issues fixed...???

What type of vibe?

 

I have an 18 Pro and it's fine, but a MT.

 

The vibration my '16 had was a slight, pulsing=-like buzz in the steering wheel and in the floorboard that you felt thru the gas pedal. It happened between like 45-60 mph. Kinda like if you set your phone on vibrate and put in under the floormats in your truck. You wouldn't feel it as much if you had your feet touching the phone directly, but you would feel it. That's the best way to describe it in my opinion.