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Old 03-04-2010, 08:08 PM   #70 (permalink)
comptiger5000
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RaceJeep - '98 Jeep Grand Cherokee (ZJ) 5.9 Limited
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Vskid - A doubler setup is actually a good idea for that type of use, as long as the reduction isn't too big. It allows you to gear the axles taller and still have somewhat lower gearing when needed.

Also, taller tires will help highway mileage, as long as they don't hurt aerodynamics or rolling resistance much. They will hurt city mileage a bit, however, due to increased weight.
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