Rally Car Final Drive Requirements

Rally Car Final Drive Requirements

Track Drive


In the world of rally car racing, the final drive is a crucial component that ensures that the vehicle can handle the various terrains and conditions that the driver will face. It is the final stage of the powertrain system and is responsible for transmitting the power from the gearbox to the wheels. In this article, we will discuss the key requirements for rally car final drives.


The final drive of a rally car is typically made up of several key components, including the differential, crown wheel, and pinion gear. These components work together to transmit power to the wheels while allowing them to rotate at different speeds, which is necessary for turning.


When it comes to final drive performance, there are several factors to consider. One of the most important is the gear ratio, which will determine the top speed and acceleration of the vehicle. In addition, the final drive must be strong enough to handle the stresses of high-speed racing and rugged terrain.

Installation Guide

Swing Gearbox

When it comes to installing a final drive, it is important to ensure that it is compatible with the rest of the powertrain system. This may require modifications to the gearbox or other components. The installation process typically involves the following steps:

  • Remove the old final drive
  • Install the new final drive
  • Reassemble the powertrain system

It is important to follow the manufacturer’s instructions carefully and to pay close attention to torque specifications and other details. In addition, it may be necessary to make adjustments to the final drive after installation to ensure optimal performance.


Final drives are used in a variety of vehicles and machinery, including construction equipment, agricultural machinery, and industrial vehicles. In the automotive industry, final drives are commonly found in high-performance vehicles such as race cars, sports cars, and off-road vehicles.

Maintenance and Troubleshooting

Regular maintenance is essential to ensure the longevity and reliability of the final drive. This may include checking and replacing the gear oil, inspecting the components for wear and damage, and making any necessary adjustments to the gear mesh or backlash. In the event of a problem with the final drive, it is important to diagnose the issue quickly and accurately. Common problems include noise, vibration, and leaks. Depending on the nature of the problem, it may be possible to repair the final drive or it may need to be replaced entirely.


As we have seen, the final drive is a crucial component in any rally car or high-performance vehicle. It must be carefully designed and constructed to handle the stresses of high-speed racing and rough terrain. Regular maintenance and prompt diagnosis of any issues are essential to ensure that the final drive performs optimally. If you are looking to upgrade your rally car’s final drive, contact us today to discuss your options.

Author: Miya