Which axle ratio for 2013 Ram 3500 dually?

goducks10 wrote:
I would opt for the 4.10. I have 3.73 in my Ram SRW with the stock 245/75/17 tires. At 1600 rpm I'm running 62. Problem is when your in the mtns and running 50-60, 6th gear is a bit much, so dropping to 5th works better but then you turning 19-2000 rpms. Not really that bad, but going to 4.10 would give me another 150+ rpm's which would allow me to run 6th in the mtns. You would turn more running the freeway at say 65 but still not bad. 4.10 will give the truck a better range of towing in 6th gear especially with a heavy 5'er.

I am curious as to what you like better about the number 6 than 4 or 5. When towing hard and heavy 4th is an excellent gear to be in. Why do you want to speed things up using overdrive gears (loosing power/creating heat) only to slow it back down again in the rear axle (loosing more power/creating more heat)?

Edit: The 3.42 gears would allow the truck to run in 5th, when you want, at 1715 engine rpm at 62 mph.