Forum Discussion
SoCalDesertRid1
Jun 30, 2016Explorer II
billtex wrote:That doesn't surprise me at all.
FWIW; When we still owned our business we were running 2 Suburbans as part of our fleet. Identical except for final ratio; one was 4.10 the other 3.73.
There was no measurable difference in mpg at all.
Bill
There's only a small rpm difference between those 2 ratios at equal road speeds, with equal tire diameters and transmissions. I would have to do the math to know for sure, but going by memory I think it's only like 300 rpm.
The greater torque multiplication of the 4.10 is worth more than the slightly lower rpm of the 3.73
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