2020 F450 owners
Do you think your truck sits any higher or lower (unloaded) compared to a F350 dually? What are your rpms (when not towing) at 70 mph? What is your highway mpg when not towing? Thanks
Forum Discussion
A vehicle with a 31.9" inch tire diameter, 4.30 rear axle ratio, and .632:1 final gear(10-speed) ratio will be at 2,000 rpm at 70 mph. The older 2011-2019 with the 6-speed trans, which has a .674:1 final gear ratio, would be at 2,130 rpm at 70.
