A live axle is a type of axle that is connected to the wheels of a vehicle and transmits power from the engine to the wheels. This means that when the vehicle moves, the axle rotates along with the wheels, providing traction and stability. Live axles are commonly found in many types of vehicles, including trucks and off-road vehicles, due to their strength and durability. In a live axle system, both wheels on an axle are linked together, which helps maintain even tire wear and improves handling. This design can also enhance the vehicle's ability to navigate rough terrain, making it a popular choice for off-road enthusiasts and heavy-duty applications.