For the automatic, the axle gears are selected to match the tires. They are not arbitrary.Can we talk a little about the difference between 4.46 gears and 4.7 (i.e. pros and cons).
I am still confused about the main differences. (talking automatic here btw)
Is it mainly that on the lower end, the 4.7 will be able to roll at lower speeds?
4.46 gears w/33" is an exact match to 4.7 gears w/35". So the transmission/ABS/traction performance tuning is identical. They use 4.27 for 32" and 3.73 for 30" which is also similar overall. If you change tire size without changing the gears, you may impact the overall performance and driveability (although usually not an issue for modest changes).
They put 4.7 on the manual badlands to give the competitive crawl ratio. There is minimal tuning impact, since shifting is not computer-controlled.
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