Tools You'll Need:
* Jack and jack stands: Essential for safety. Never work under a car supported only by a jack.
* Wheel chocks: To prevent the car from rolling.
* Lug wrench: To remove the wheel.
* Socket set and wrenches: Various sizes will be needed, including those for the axle nut, caliper bracket bolts, and possibly ABS sensor.
* Ball joint separator: To separate the ball joint from the steering knuckle. A pickle fork can work, but a ball joint separator is safer and less likely to damage components.
* Hammer (or mallet): Possibly needed to help separate parts.
* Penetrating oil (like PB Blaster): To loosen rusted or seized bolts.
* CV axle puller: Highly recommended to remove the axle from the transmission or hub. Trying to pry it out can damage the transmission or axle.
* New CV axle: Make sure you get the correct one for your vehicle.
* Torque wrench: Crucial for tightening bolts to the correct specifications.
* Grease: For the new CV axle's boots.
* Safety glasses and gloves: Protect yourself.
General Steps (Consult your repair manual for specifics):
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks.
2. Raise and Secure: Safely raise the vehicle using the jack and secure it on jack stands.
3. Remove the Wheel: Remove the lug nuts and the wheel.
4. Disconnect Brake Caliper: Remove the caliper bolts and carefully hang the caliper out of the way using a wire or bungee cord. *Do not let the brake line hang freely.*
5. Disconnect ABS Sensor (if applicable): Unplug the ABS sensor if your vehicle has one.
6. Disconnect Ball Joint: Separate the ball joint from the steering knuckle using a ball joint separator.
7. Remove Axle Nut: Remove the large nut securing the axle to the hub.
8. Remove the old CV Axle: Use a CV axle puller to remove the axle from the transmission or hub. Pulling it out without a puller risks damage.
9. Clean and Inspect: Clean the hub and transmission area. Inspect the components for any damage.
10. Install New CV Axle: Grease the new CV axle boots and carefully install the new axle into the transmission and hub.
11. Reinstall Components: Reinstall the axle nut, ball joint, caliper, and wheel. Torque everything to the manufacturer's specifications.
12. Lower Vehicle: Carefully lower the vehicle.
13. Test Drive: After everything is installed correctly, test drive the vehicle to ensure proper functioning.
Important Considerations:
* ABS Sensor: Be careful with the ABS sensor. Damaging it can lead to ABS system issues.
* Torque Specifications: Using the correct torque specifications is critical to prevent damage.
* Boot Integrity: Ensure the new CV axle boots are properly seated and clamped to prevent grease leakage.
* Difficulty: This job can be challenging for those without mechanical experience. If you're not comfortable, it's best to take it to a qualified mechanic.
This is a simplified overview. Refer to a detailed repair manual for your specific 2002 Chevrolet Impala for accurate and comprehensive instructions. Improper installation can lead to serious damage and safety hazards. If you're unsure about any step, seek professional assistance.
