That sounds like a bearing to me.

Will it do it parked and held at 2200?

If so it's engine or input side of the transmission related.

What does it do if you run it past that speed on the road, put it in neutral and let it coast back down?

If it does it then it's probably a tailshaft bushing or
a wheel bearing if it's the kind of vibration that I think you're describing.

Kevin