If you're a proud owner of a 2007 Ford Mustang and have noticed unusual noises coming from the rear of your vehicle, it might be time to inspect your rear wheel bearings. This guide will walk you through the process of replacing them, ensuring your Mustang stays in top shape and keeps you safe on the road.
Identifying the Need for Rear Wheel Bearing Replacement
Rear wheel bearings are responsible for supporting the weight of your vehicle and reducing friction between the wheel and the hub. When they fail, you might experience:
- Growling or grinding noises, especially when turning or at low speeds.
- Wobbling or vibration in the steering wheel.
- Excessive play in the wheel, which can be felt when jacking up the vehicle and pushing or pulling the tire.
If you suspect your rear wheel bearings are faulty, it's crucial to address the issue promptly to prevent further damage and ensure your safety.

Tools and Parts Needed
Before you begin, gather the following tools and parts:
- Jack and jack stands
- Wheel wedges
- Socket set (including a 36mm socket)
- Breaker bar
- C-clamp
- Hammer
- New rear wheel bearing assembly (including hub and bearing)
- New wheel bearing grease
Step-by-Step Replacement Process
Follow these steps to replace the rear wheel bearings on your 2007 Ford Mustang:
| Step | Action |
|---|---|
| 1 | Loosen the lug nuts on the affected wheel using a breaker bar and socket. Do not remove them yet. |
| 2 | Jack up the vehicle and secure it with jack stands. Place wheel wedges behind the other wheels to prevent the vehicle from rolling. |
| 3 | Remove the lug nuts and wheel, then set them aside. |
| 4 | Using a 36mm socket and breaker bar, remove the bolts securing the brake caliper to the steering knuckle. Slide the caliper off the rotor and suspend it using a bungee cord or wire to avoid straining the brake line. |
| 5 | Remove the cotter pin and castle nut from the wheel bearing hub. Use a hammer and a punch to drive out the hub nut if it's stuck. |
| 6 | Using a C-clamp, apply pressure to the outer edge of the hub to push the bearing out. You may need to use a hammer to tap the hub gently to break it loose. Repeat this process on the inner bearing. |
| 7 | Clean the hub and any remaining bearing races with a wire brush or compressed air. Inspect the hub for any damage or wear. |
| 8 | Pack the new bearings with the recommended grease, ensuring they are fully coated. |
| 9 | Install the new bearings onto the hub, using a hammer to tap them gently into place. Make sure the correct side of the bearing is facing out (the side with the shield or stamped markings). |
| 10 | Reinstall the hub nut and cotter pin, then torque the nut to the specified value (usually around 120-150 lb-ft). |
| 11 | Reinstall the brake caliper and bolts, then torque them to the specified value (usually around 25-35 lb-ft). |
| 12 | Reinstall the wheel and lug nuts, then lower the vehicle to the ground. Tighten the lug nuts and remove the jack stands. |
| 13 | Torque the lug nuts to the specified value (usually around 80-100 lb-ft) using a torque wrench. |
After completing the replacement, take your Mustang for a test drive to ensure the new bearings are functioning correctly. Keep an eye out for any unusual noises or vibrations, and don't hesitate to consult a professional mechanic if you encounter any issues.

Replacing the rear wheel bearings on your 2007 Ford Mustang might seem like a daunting task, but with the right tools and this comprehensive guide, you can tackle this project with confidence. Regular maintenance and addressing any issues promptly will help keep your Mustang running smoothly and safely for years to come.