Difference between 4.30 & 3.55 gears
My 2011 F-350 has a 3.55 geared rear end. The new 2017 F-450 only comes with a 4.30 geared rear end. Basically the same engine (6.7 turbo diesel). Does that mean better or worse fuel consumption...
Forum Discussion
I agree with the above. My truck is dedicated for RV use and the 4.44's are perfect for 55-65 mph towing and using the full range of transmission gears. If it was a daily driver or I drove faster, 4.10's would be a better choice.
