RPM at 70MPH

I have a stock 5.7 and 545RFE. With 3.23 gears it cruises great at 70 mph around 2000 RPM. I would have gone with 3.55 or 3.91 gears, but the 3.00 1st gear in the 545RFE trans made me change my mind. For comparison my cruise RPM is higher than my 04 Durango with the same engine and trans.