Differences in the track, tire sizes, class rules, and other factors can cause you to rethink your selection of gears, possibly from week to week and even from the beginning to the end of an event (in ...

Few vehicle modifications have as major an impact as changing gear ratios, and it's because your car's gear ratio directly translates to how it delivers power. Think about it: The gear ratio, or how ...

Transmission makers have to balance vehicle speed and engine power. The choices they make affect everything from shifting ...

Axle gearing plays a critical role in vehicle performance. It determines how efficiently engine power is delivered to the ...

It's been two decades since Detroit began offering overdrive transmissions as original equipment in virtually all vehicles rolling off their assembly lines. And while the OEM's intent was to improve ...