2016 vibration during acceleration

I have a 2016 Limited Crewmax 32K miles. During acceleration, moderate or slowly, I feel a slight vibration at about 35 mph and about 2.0 - 2.3K RPMs and this is right before it shifts. If I am on it hard I don't seem to feel it. Anyone else experience this?

 

Yes, I'm stock....it happens at about 1800 - 2000 RPMs @ 32-35 mph while accelerating. Just went out to get dinner and realized it is in 4th gear by the time it does it and it is fairly subtle but of course I notice it

 

...I can feel it through the gas petal so it feels like it is coming from the trany or drive train. It is a small vibration. Wonder if it is in 4th too early for the speed. It is not a TRD package but it is 4X4 so not sure what gears it has in the rear end.

 

I have a '16 SR5 4x4 and around 37-40 it has vibrations. It's more noticeable if I creep through those speeds or maintain them. If I accelerate through the speeds as you mentioned I really don't notice it. It's been doing this for a long time. I have 47k on the clock. It doesn't do it at any other speed so I never took it in for fear they would make things worse somehow at other speeds and I rarely pace or cruise at those speeds. I just figured it was normal.

Most people probably don't notice it because you do have to be paying attention to notice it.