Grit dog wrote:
But I'm right, unless the laws of physics aren't working right and mechanical design has been all wrong since the first caveman used a bigger lever to move a bigger rock with less effort, lol.
That is exactly why I computer the final gear ratio's. Both the 3.42 and 4.10 will get a sizable load moving in first gear with the lower first (and second) in the Aisin tranny. However we do not spend much time in first. Out on the highway towing is more important regarding what the higher gears do. Final gear ratio is the transmission gear ratio selected times the diff ratio. Having the lower 4.10 gears are negated when you have to shift to 6th gear and it's .63 OD ratio to maintain freeway speed, where as the 3.42's do the same thing in 5th gear which has a .77 overdrive ratio.
The engine is working against final gear ratio, not just the diff ratio.