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I am currently running a high gear ratio (lower numerical) of 3.07 and have found no major issues while desert driving. However, since I had increased my tire size from 29" to a 31", and since I am looking in the near future at a possible differential replacement, I wanted your suggestions on whether it would be advisable to go for a lower gear ratio (higher numerical) like 3.54, 3.73 or even 4.10. What I have understood from reading online is that when you mention a 3.07 gear ratio, the drive shaft would rotate 3.07 times for one rotation of the wheel. So that means that while driving on the highway you would get better mileage as the drive shaft is rotating less as compared to a 3.54 gear ratio. In the US, all the forums suggest going for a lower gear ratio (higher numerical) like 3.73 or 4.10 as a minimum, but then their offroading activity is more into rock crawling where you would need the car engine to be in right bandwidth of approx 3000 rpm so that you have maximum torque but with low speed to climb the obstacle. How would the gear ratios matter while doing desert driving where momentum is the main thing. By lowering the gear ratio to 3.54 or 3.73 I presume my speed would on the 1st gear would reduce which would reduce the performance. So bottom line for desert driving is whether a high gear ratio (lower numerical) better than a low gear ratio (higher numerical) ?
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- gear ratio
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