Question for bragging rights.

So I took my 1972 340 Demon out the other day….
I was doing 3700rpm at 60mph.
25.6” rear tire height. 15” rim
What gear was I in?
What transmission do I have .
What rear gear am I running?
All year appropriate Ma Mopar running gear. Nothing the car did not role down the factory line with.

Sorry- just for fun- bragging rights.
And “no!” You don’t need more info this should be sufficient if you know your drive train.