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
lakeside013104 wrote:
I was told by Ford salesman that the higher the number on rear end gears, the better the fuel mileage.
But everybody knows that car salespersons are experts on EVERYTHING.
:R
