What's the deal with the Jeep Wrangler Rubicon's four-to-one (4:1) transfer case? What about those 4.10 gears in those beefy Dana 44 axles? Why is it that when people put bigger tires on their ...

Vehicle speed (mph), engine speed (rpm), tire diameter (inches), trans gear ratio, and rear axle gear ratio are all interrelated. If you know four out of five of these values, you can determine what ...

It's a simple formula that most four-wheelers are intimately familiar with: The deeper your crawl ratio, the more control you have out on the trail, particularly on steep, nasty obstacles. The more ...