Drive Axle Repair: Reasons for Need and What Is it Comprised Of? Drive axles are axles on engine powered vehicles that transfer energy from the engine and torque from the transmission on to the front, rear or all the wheels. Drive axles respond to the input they receive from the steering wheel to determine how power will be distributed to the wheels. Drive axles run from the differential into the wheels and are an essential for any automobile to be able it to move. Several other systems interface and interconnect with drive axles to power them and control their movement. A Complex Piece Of Equipment To many, drive axles seem like a simple, solid object. In actuality, it's a complex piece of equipment that's made up of two half axles connected to the differential and universal joints. Drive axles have several important parts. Those parts include: Axle Constant Velocity (CV) Joints Drive Shaft Differential Universal Joint ... read more