Loading

How do I find my transmission gear ratio?

The transmission gear ratio is a crucial piece of information for understanding your vehicle's performance and capabilities. This ratio determines how much power is transferred from the engine to the wheels, affecting acceleration, fuel efficiency, and top speed. Here's a detailed guide on how to find your transmission gear ratio.


What is a Transmission Gear Ratio?


The transmission gear ratio is the relationship between the number of teeth on the input gear (connected to the engine) and the number of teeth on the output gear (connected to the driveline). This ratio determines how much the engine's rotational speed is reduced or increased before it reaches the wheels. A higher gear ratio means the wheels turn slower than the engine, providing more torque but lower top speed, while a lower gear ratio results in faster wheel rotation and higher top speed but less torque.


How to Find Your Transmission Gear Ratio


There are a few ways to determine your vehicle's transmission gear ratio:



  • Check the Owner's Manual: The most straightforward method is to consult your vehicle's owner's manual, which should list the gear ratios for each gear in your transmission.

  • Inspect the Transmission: You can also physically inspect the transmission gears to count the number of teeth on the input and output gears. The gear ratio is calculated by dividing the number of teeth on the output gear by the number of teeth on the input gear.

  • Use an Online Calculator: There are various online gear ratio calculators that allow you to input your vehicle's make, model, and year, and they will provide the corresponding gear ratios.


Once you have the gear ratio, you can use this information to understand your vehicle's performance characteristics and make informed decisions about modifications or upgrades.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.