Fuel Economy

[TJB]

I am interested to know what kind of real world difference there is between the stock 3.42 gears and 4.10 in terms of MPG. Does anyone have any idea what the difference would be?

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[TCoopSC]

I just changed from 3.42 to 4.10s and I’m seeing a little better MPG. I also have 37” tires and drive city/ back roads 95%. My RPMs went up around 200-300 depending on which gear I’m in. With 37” tires, I’m around 1800 rpm at 75mph. I haven’t stuck to highway traveling so no idea if I’m getting better or worse than before.

I’m getting average of 19-20.


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