Ford 7.3 Gas motor

I have a new truck the 7.3L and am waiting for a new 5th wheel. I had a 2006 F350 with the V-10 and 4:40 gears. I can already tell that this truck has more zip and will handle towing better. I'm already getting "better" local and highway unloaded mileage with a brand new drivetrain than I did with the broken in V-10. My last truck was very reliable. Hope this guys is too. ("Better " in parenthesis since we all know that good gas mileage in a large truck is a relative term. lol!)