Which parts are mounted at the inner end of control arms?

• A. Ball joints
• B. Tie rods
• C. Bearings
• D. Bushings

Answer: (D)

Control arms need a flexible, pivoting mounting to let the suspension move while keeping the wheel aligned. That’s provided by bushings at the inner end. These bushings act as a cushion and hinge, allowing the arm to swing as the axle moves up and down and side to side, while isolating vibrations and helping maintain proper geometry.

The outer end of the control arm usually uses a ball joint to connect to the steering knuckle, which is essential for steering and wheel movement. Tie rods are part of the steering linkage, not the control arm’s mounting point, and bearings are part of the wheel hub assembly, not the inner mounting of the control arm.