My manual has a vibration at 2500rpm when between gears or coasting in gear (no load). Ford said this was normal, after test driving the car and calling Ford N/a. I think its a harmonic vibration felt through the shifter, since it's mounted directly on the transmission. I usually don't feel it since I've changed my driving habits to avoid it. Anyone else experience this? Should I find another dealer? What could it be? I'm conserned since the MT82 has a reputation.