7.3 diesel with 355 gears
Has anyone had 355 gears with a 7.3 diesel was thinking about changing to them from 410's but want to know if it will be geared too low, also what rpm will 65mph, be at 410's at 1900 is about 56mph
Forum Discussion
Well the Gear Vendors would give you both worlds. Pulling gears and freeway gears.
There’s no hard rule that x tire size will change your mileage y amount.
There are too many variables.
If you lack power, that can be fixed. The 7.3 is a great motor and it’s not hard to bump it up a little to a more acceptable level without going too wild. I’ve driven some slightly modded 7.3s that were absolute stompers, and reliable everyday.
I also believe the better MPG at the slower speed has everything to do with drag and almost nothing to do with the slight engine RPM change.
It’s pretty well known that trucks with campers will get a lot better mileage if you slow down somewhere in the 50s for MPH vs. 60+.
There’s no hard rule that x tire size will change your mileage y amount.
There are too many variables.
If you lack power, that can be fixed. The 7.3 is a great motor and it’s not hard to bump it up a little to a more acceptable level without going too wild. I’ve driven some slightly modded 7.3s that were absolute stompers, and reliable everyday.
I also believe the better MPG at the slower speed has everything to do with drag and almost nothing to do with the slight engine RPM change.
It’s pretty well known that trucks with campers will get a lot better mileage if you slow down somewhere in the 50s for MPH vs. 60+.
