The final drive ratio of a drivetrain describes the overall gear ratio of the entire drivetrain from the first input to the final output. In the context of the Falcon, it describes the overall gear ratio between the drive motors and the rear wheels. The final drive ratio is useful because while there may be many different gear sets with varying ratios within one drivetrain, it gives us a, big picture, look at the mechanism as a whole.
To calculate the final drive ratio, simply multiply the gear ratio of each individual gear set together. In the Falcon, there are two gear sets that change the rotation speed. The first is the 90-degree set that comes directly from the drive motors, with a ratio of 1:3. The second is the ring-and-pinion ...
