Dually gearing? Coming from a SRW
Sold my 2005 F250 Powerstroke diesel SRW, 3.73 with 285s on it (34s). Gearing felt great, at 2k RPM I was around 74 mph. This new dually (same year/engine) has 4.10s and 245s (like 31-32 inches). ...
Forum Discussion
Not goi g to make much difference in mileage IMO. You just bought a truck for towing heavier than your old truck is all. 6.0 won't care. No issues running a little higher in the rpm range.
