Chapter 3
Transmissions and Drivetrains
The transmission and drivetrain are responsible for powering your vehicle
forward. The transmission translates the power produced by the engine into
forward motion. The drivetrain is a series of gear-driven components powered
by the transmission. It is typically made up of driveshafts, axles, differentials,
and transfer cases or auxiliary gearboxes. Configurations vary with vehicle
design and equipment.
It’s important that you have a basic understanding of how each of these
systems work. This knowledge will drive home the importance of maintaining
your car so that you can get the most mileage out of it. In addition, this
information will help you identify a problem and communicate it effectively to
your technician.