[Desert Dan]

Boulder Hummer..... with lareger tires say 33" you would want the 4.56:1 axle ratio to keep performance, acceleration and mileage similar to stock. That is why the adventure package has 4.56 gears inaddition to providing more low end grunt when off road

as I had posted earlier...under Off road Suspension Tire and rims
Posted 06-16-05 08:22 AM
2.64:1 is the gear ratio of the transfer case reduction. This means that for every 2.64 turns of the input shaft of the t-case the output shaft turns only once.. That is why when in low range the engine is revving up and you are moving very slowly.

The Adventure package includes a 4.03:1 low-range transfer case.

As in axle gears too, the higher the number like 4.56:1 (numerically) means a lower gear ratio.

Lower gears are for power and torque and higher gears for top speed and or gas mileage