Axle Ratio, new truck
Hey all, I think I know the answer but just wanted to make sure. I am looking into a 5th wheel ~15k GVWR and am buying a truck. I want an f350 and may order a new one to get exactly what I want (there...
Forum Discussion
My '15 F350 SWR,cc, 4x4 ,sb, 6.7 had 3.55 gears, 6sp tranny and it ran (I think...frigging CRS!) around 2,000 at 70 mph. The ;17 F350 DWR, cc, 4x4, 6.7, 4.10 gears, 6 sp tranny is at 2100 rpms at 70 mpg. Towing rig in sig, it's getting 8.5-9.0 mpg. It's true the gasser will not get as good as mpg towing as a diesel will, but consider down the road and you want to get a bigger RV. The 4.30 will be better for the whole truck. I like the idea another poster mentioned about considering a used SWR or even a DWR diesel. If sticking w/ Ford, 3.55 w/ the 6 sp and heard that w/ the 10 Spd they are utilizing 3.31 gears. My '17 was an off the lot purchase and came w/ 4.10's. I would have liked to have 3/73's, but overall, happy w/ the 4.10's.
