rear axle gear ratio
Getting ready to move up to a 3500. I've shopped the available trucks, and have a good idea of what I want. The two I have narrowed down to are a '14 and a '15 Ram 3500. Identical with the exception o...
Forum Discussion
4x4ord wrote:tinner12002 wrote:
Go with 4.10s and don't fall for the hype of getting better fuel mileage with the 3.73 because you'll likely not see a difference. With the new trucks they are geared to nearly the same high gear for mileage. I'd also recommend getting the Aisin trans if they have it. Just my opinion.
What do you mean by stating "with the new trucks they are geared to nearly the same high gear for mileage"?
The difference between the 3.73 and the 4.10 trucks, and I'm referring to trucks in the last 3-4 years, I drove was as close as I could tell, 150rpm, not enough to make a significant difference in MPG even as calculated. 3.73s give up about 5-6K pounds of tow capacity also. You can tow with any ratio you want but in my opinion the 4.10s are the way to go. On a straight and level road at 55mph my truck empty will get 22-24mpg and have seen it as high as 25. Hand calculated vs comp was only .5 mpg off so I've checked both ways.
