They are also referred to as drive shafts, axle shafts, or CV shafts (constant-velocity shafts). A half shaft is a shaft that connects the transmission or differential to the wheel, transmitting power from the engine to the wheels to drive the vehicle.

Construction:
Half shafts are typically made of high-strength steel or other materials with the ability to withstand high levels of torque and stress. They consist of a shaft with universal joints or constant velocity (CV) joints at each end. These joints allow for flexibility and movement of the shaft as the suspension moves up and down during driving.

Function:
The primary function of a half shaft is to transmit power from the transmission or differential to the wheels while allowing for the up-and-down movement of the suspension. The universal or CV joints at each end of the shaft enable the wheels to turn while accommodating changes in ride height and steering angles. This helps to maintain a smooth and consistent power delivery to the wheels, ensuring optimal performance and handling.

Maintenance:
Half shafts are subject to wear and tear over time, especially in vehicles with high mileage or those driven in harsh conditions. It is essential to inspect the half shafts regularly for signs of damage, 2006 chevy avalanche PCM such as clicking or popping noises during turns, vibrations, or grease leaks around the joints. Damaged half shafts should be replaced promptly to prevent further damage to the vehicle and ensure safe driving.

In conclusion, half shafts play a crucial role in transmitting power from the engine to the wheels in front-wheel drive and all-wheel drive vehicles. Regular maintenance and prompt replacement of damaged half shafts are essential to ensure optimal vehicle performance and safety on the road. Understanding the function and importance of half shafts can help vehicle owners make informed decisions about their maintenance and repair needs.