The 3.43 Rear end
I have a 07 Dodge and have a 3.73 rear end. I am thinking of trading it for a 2013/14 and have been told that I would get better gas mileage with the 3.43 rear end. I am towing a 14,000 lb 5th wheel...
Forum Discussion
BenK wrote:Absolutely. You have to consider where (in terms of RPMs) the final drive ratios will put the engine at whatever speeds you want to drive.Folks...it's always all been about the final gear ratio at pavement vs ICE
So to just reference a diff ratio, today, is out of context...there is
more to it than just the diff ratio...
The final drive ratio is a function of the rear-end combined with the tranny. The best RPM range is a function of the engine. And the speed you want to travel is a function of the driver and the terrain. You have to consider all of these things in order to get an optimal system.
-- Rob
