1. Power Transmission: The rear end is responsible for transmitting power from the engine to the wheels. It consists of a series of gears and shafts that work together to transfer the engine's torque to the wheels. The rear end also includes a differential, which allows the wheels to turn at different speeds when the vehicle is cornering.
2. Gear Reduction: The rear end contains gears that reduce the engine's rotational speed and increase its torque. This is necessary because 18-wheelers and other heavy-duty vehicles require a lot of torque to move their heavy loads.
3. Weight Distribution: The rear end helps to distribute the weight of the vehicle's load over the rear axle. This helps to improve stability and handling.
4. Durability and Reliability: The rear end of an 18-wheeler is designed to be extremely durable and reliable. It is built to withstand the stresses and strains of hauling heavy loads over long distances.
Overall, the rear end plays a vital role in ensuring the smooth and efficient operation of an 18-wheeler or other large vehicle. It is a critical component that contributes to the vehicle's power transmission, gear reduction, weight distribution, and overall durability.
