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depends on how it is driven... heavy right foot, always panic stopping... 8-10 would be my guess.. easy on the gas, able to let it roll into corners and stops, not jerking it all over the road... 16-18 maybe even 19 or 20 could be had...



That's about right.

Points of comparison are a pair of '99s - my buddy's 5.2/4WD/3.92s that he bought new (and still has) and my former 5.9/4WD/3.55s

Mileage was worse with 235/75/15 snows than with the 31s - an upgrade to the later 16" rims with a narrow tread and low rolling resistance tire would probably help.

The Durangos are heavy - 5500# IIRC and larger than the Grand Cherokees. Though for whatever reason they seem to be disproportionately hard on fuel for what they are.