Ram 2500 Transmission Ratios
I was reading how people are dissatisfied with the ratio difference between 1st and 2nd on the Ram 2500 6.4 Hemi, so thought I'd do a little more research. I'm confused as that drop is basically the ...
Forum Discussion
APT wrote:
Ford/GM transmissions offer about 20 percent shorter gearing in the first two gears compared to Ram's 66RFE. If you like the Ram, the 6.4L/4.10 is a great combo unless you plan to tow up mountains at 65mph every trip.
FWIW, the Tundra transmission with 4.30 gearing is almost identical to Ford/GM's half tons with 3.73.
So that's the issue, I hadn't run all the numbers but should have noticed that. I was focused on the difference, not the absolute ratio. Now I know why Toyota has such a high ratio; given their poor mpg I wondered why they didn't offer a lower ratio.
The Ram 1500 6-speed has by far the worst absolute 1st gear ratio, 11.76 even with 3.92s. The 2500 is a little better, but even with 4.10s it's still worse than most of the others at 13.25. The Ram 8-speed with 3.92s has the highest ratio at 18.48 followed by the F-250 with 4.30s at 17.07.
