Tools and Materials Needed:
- Jack and jack stands
- Lug wrench
- Socket wrench set
- pry bar
- Flat-head screwdriver
- Wire brush
- New CV joint assembly
- New circlip
- Grease
- Safety glasses
- Gloves
Procedure:
1. Park the Cobalt in a safe and level area, apply the parking brake, and loosen the lug nuts on the affected wheel but don't remove them completely.
2. Raise the vehicle using the jack and place jack stands under the vehicle's designated lift points for safety.
3. Remove the lug nuts, then remove the wheel.
4. Locate the CV joint that connects the axle to the wheel. It is usually covered by a rubber boot.
5. Pry off the rubber CV boot using a flat-head screwdriver or a pry bar. Discard the old boot and carefully remove the old grease inside.
6. Unbolt the CV axle nut using a socket wrench. This nut holds the CV joint to the wheel hub.
7. Separate the CV joint from the wheel hub by pulling it straight out or using a pry bar for additional leverage. This may require some effort.
8. Carefully remove the old CV joint from the axle. Be careful not to damage the splines on the axle or the CV joint.
9. Apply a thin layer of grease to the splines of the new CV joint and inside the CV joint housing before installing it.
10. Push the new CV joint into the axle and secure it by tightening the CV axle nut to the recommended torque specification provided in the vehicle's repair manual.
11. Re-attach the CV joint boot and install the new circlip or retaining ring using pliers or snap ring pliers.
12. Add a good amount of grease to the inside of the new CV boot.
13. Re-install the wheel, lug nuts, and tighten them in a star pattern to the recommended torque specification.
14. Lower the vehicle carefully using the jack and remove jack stands.
15. Repeat the process for the other side if necessary.
16. Take your vehicle for a short test drive and listen for any unusual noises or vibrations.
*If at any point you feel unsure or uncomfortable performing this task, it is best to seek the assistance of a qualified mechanic.*