A few weeks ago, I went to the amazing Auburn Cord Duesenberg Automobile Museum in Indiana, where I learned about an axle that has not just one gear ratio like in pretty much all modern cars, but two.

With only the possible exception of the electric starter, nothing has done more to expand the adoption of personal cars than the automatic transmission, as reflected by one of the first cars ...

We cherish the brutal dragstrip launch that deep rear-axle gears can provide, but we tend to bitch once we hit the open road and find the tach wagging at 4,500 rpm just to keep up with traffic.

Engineers are just wizards with college degrees. No, I take that back, they're powers are stronger than mere magic. I don't care what spells Harry Potter knows; nothing in his wizarding world is as ...

"Give me a lever long enough and a fulcrum on which to place it, and I shall move the world." — Archimedes (287- 212 B.C.) On the street, everything is a compromise. Power is now easier to make than ...

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- ...

Unlike an automatic transmission that switches gears depending on the vehicle's speed, a manual transmission requires the driver to make the change with the stick shift. For drivers new to manual ...

A transmission is a vehicle’s gearbox. It’s roughly analogous to the gear shifter and chain system employed in bicycles. Transmission components are always mounted straight on the engine so that their ...

There’s no bones about it: slipping transmissions cost big money, whether you’re a humble owner or a giant car company. Perhaps the best recent example is the PowerShift transmission, which in recent ...

High horsepower and torque are great, but gearing can really make the difference as to how you get the power to the ground, and how effectively you can negotiate the terrain you’re on. Whether it’s ...