Rear Suspension Control Arm Bushing

This suspension bushing is a small but critical part that sits between a rear control arm and the vehicle mounting point. Its job is to absorb vibration, control arm movement, and road shock while keeping the rear geometry stable. ✅ It helps the car feel tight, quiet, and predictable in corners.

Why This Part Is Needed

Without a healthy bushing, metal parts would contact directly, creating noise, harshness, and unstable handling. The rubber compound acts like a cushion while still holding the arm in the correct position under load.

How It Works

The bushing uses an elastic core bonded to an outer shell. As the suspension moves, it twists slightly to allow controlled flex. This controlled flex keeps alignment closer to spec during braking, acceleration, and cornering, improving tire contact and stability .

What Happens If It’s Worn or Broken

• Clunking/knocking over bumps
• Rear end feels loose or “wanders”
• Uneven tire wear and faster tire wear
• Poor alignment retention after adjustment
• Extra stress on control arms and joints

Compatibility

• Q60/G Coupe
• Q40/G Sedan
• G37 Sedan