Word forms: (regular plural) final drives
noun (Automotive engineering: Vehicle components, Engine, transmission, and exhaust) The final drive is an assembly of gears in the back axle of rear-wheel drive (= with engine power going to the rear wheels) vehicles and in the front axle of front-wheel drive (= with engine power going to the front wheels) vehicles. ⇒ The last set of gears in the drive train is the final drive. ⇒ When the final drive comes on the axle, the rotating wheels have to move at different speeds when the car negotiates a curve. ⇒ On a front-wheel-drive car, the transmission is usually combined with the final drive to form what is called a transaxle.
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