Optional axle ratios can tailor pickup truck power and efficiency to suit your needs as long as the gearing keeps the engine in its torque sweet spot. Often overlooked, optional gear ratios play a key ...

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 ...

For part two of our series about transforming Jared Lehenbauer’s new-to-him ’01 Ford F-250 into a truck that’s better suited to his needs, we’re detailing how to select the correct gear ratio for two- ...

If you’re new to four-wheeling then you’ve probably heard about changing gears and adding lockers. If you pictured shifting your transmission with locking boxes in the bed, that is not what we are ...

Axle gearing plays a critical role in vehicle performance. It determines how efficiently engine power is delivered to the wheels, which directly impacts fuel efficiency, torque, acceleration, and the ...

Engineering legend has it that Atlas, doomed to perpetually bear the weight of the world on his shoulders, lamented, "Give me a lever long enough, and I can move the world." Atlas realized that levers ...

STATING that improvements can be made in the smoothness, flexibility and economy of motor-cars by the provision of axle ratios and transmission steps that will make high road-speeds possible with ...

Axle gearing plays a critical role in vehicle performance. It determines how efficiently engine power is delivered to the wheels, which directly impacts fuel efficiency, torque, acceleration, and the ...