What drive train component connects the transmission to the drive axle on a rear-wheel drive vehicle?

The drive shaft is the component that connects the transmission to the drive axle in a rear-wheel drive vehicle. Its primary purpose is to transmit power from the transmission, which is located at the front of the vehicle, to the rear axle where the drive wheels are positioned. This transfer of power allows the vehicle to move forward.

In a rear-wheel drive setup, the drive shaft is usually a long, cylindrical metal rod that is engineered to handle the torque produced by the engine and transmission while spinning at high speeds. It typically rotates continuously as the vehicle moves, ensuring that power is delivered efficiently to the rear wheels.

The other components mentioned serve different functions: the axle shaft is part of the drive axle and transmits power from the differential to the wheels; the transfer case is used in four-wheel drive systems to direct power to both the front and rear axles; and the differential is a gear assembly that allows for differences in wheel speed during turns, facilitating smoother handling. Understanding the specific role of the drive shaft clarifies its importance in the overall drivetrain of a rear-wheel drive vehicle.