Until now, the How It Works series has focused on how an engine makes power. Now we'll fill you in on how engine power is made usable to propel a car. The parts used to get the car moving consist of ...

What is a granny gear transmission: a question a child might ask but not a childish question. Opinions vary on what constitutes a "granny tranny," but in a nutshell it's a manual transmission with an ...

When it comes to transmissions, cars used to fall under two categories: manual and automatic. However, a third type of ...

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 ...

With their debut in the 1990s, GM's 4L60E and 4L80E transmissions reveal some of their differences –- and similarities –- right in their names. The "4" and "L" respectively refer to the number of ...