Front Lower Suspension Arm Assembly (Control Arm)

This suspension arm is a key link between the front wheel hub and the vehicle subframe. It keeps the wheel correctly positioned while the suspension moves up and down, helping your SUV stay stable, steer straight, and feel smooth over bumps 🚗.

Why this part is needed

The arm holds alignment angles under load and carries road impacts through its bushings and ball joint. Without a healthy arm, the suspension cannot control wheel travel accurately, especially during braking and cornering.

How it works

The arm pivots on rubber bushings mounted to the chassis, allowing controlled movement while absorbing vibration. The outer ball joint connects to the steering knuckle, letting the wheel turn while still supporting vertical and side loads.

What happens if it’s worn or broken

A failing arm can cause clunks, wandering steering, uneven tire wear, and poor braking stability. In severe cases the ball joint or bushing can separate, leading to loss of control and potential wheel misalignment on the spot ⚠️.

Common symptoms

• Knocking over bumps
• Steering pull or drift
• Shaking at speed
• Rapid inner/outer tire wear

✅ Compatibility

• Infiniti QX70
• Infiniti FX