4. 4. FINAL DRIVE FINAL DRIVE FRONT AXLE FRONT AXLE 1) 1) 3 2 1 1 Universal joint 2 Pinion gear 3 Ring gear (1) To gain a large drive force, the final drive uses a planetary gear system to reduce the speed and send drive force to the tires. (2) The power transmitted from the differential through universal joint (1) to pinion gear (2). The pinion gear rotates around the inside of a fixed ring gear (3) and in this way transmits rotation at a reduced speed to the planetary carrier. This power is then sent to the wheels which are installed to the planetary carriers. 2-42