Lower control arms are essential components of a vehicle's suspension system. They connect the vehicle's chassis to the wheels, allowing for controlled movement during driving. This helps maintain proper wheel alignment and stability, contributing to a smoother ride and better handling. These arms are typically made of metal and are designed to withstand significant forces while providing flexibility. They work in conjunction with other suspension parts, such as upper control arms and shock absorbers, to absorb bumps and maintain tire contact with the road. Proper functioning of lower control arms is crucial for vehicle safety and performance.