What is the purpose of torque arms in a vehicle?

The purpose of torque arms in a vehicle is primarily to keep the axle from twisting. Torque arms are components that connect the vehicle's frame or body to the rear axle assembly. When the vehicle accelerates or decelerates, the rear axle tends to rotate due to the differential's action. The torque arm counteracts this rotational force, helping to stabilize the axle and maintain proper alignment during these dynamic conditions. By preventing axle twist, torque arms improve traction, enhance vehicle stability, and contribute to overall handling performance. This function is crucial in performance and off-road vehicles where maintaining control during acceleration and cornering is essential for safety and efficiency.

Other functions, such as maintaining suspension height or providing power to the wheels, are handled by different suspension components or systems. Similarly, while the steering column requires support from other structures, it is not the purpose of torque arms.