Here's a general outline of the process. Remember, this is a *simplified* overview and may not cover all variations across model years. Always defer to your repair manual:
Tools You'll Likely Need:
* Jack and jack stands: Essential for safety. Never work under a car supported only by a jack.
* Lug wrench: To remove the wheel.
* Wheel chocks: For added safety.
* Torque wrench: Absolutely necessary for proper tightening of bolts and nuts.
* Sockets and wrenches: Various sizes, depending on your specific model year.
* Hammer and punch (possibly): May be needed to break loose stubborn components.
* Penetrating lubricant (PB Blaster or similar): Helps loosen rusted or seized bolts.
* Clean rags or shop towels: To keep things clean.
* New rear wheel hub assembly: Make sure you get the correct part for your vehicle.
General Steps (Consult your repair manual for specifics):
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks on the wheels opposite the one you're working on.
2. Remove the Wheel: Loosen the lug nuts slightly before jacking up the car. Jack up the vehicle securely and place it on jack stands. Completely remove the lug nuts and carefully remove the wheel.
3. Brake Caliper Removal: You'll likely need to remove the brake caliper to access the hub. This usually involves removing the caliper mounting bolts and carefully hanging the caliper out of the way using a bungee cord or wire. Be mindful of the brake line; do not let it hang down or get damaged.
4. Rotor Removal (Possibly): Depending on your model year, the rotor might need to be removed before accessing the hub. This often involves removing rotor retaining bolts.
5. Hub Removal: This is the most challenging part. The hub is usually held in place by several bolts or nuts. Penetrating lubricant applied in advance is helpful. You may need to use a hammer and punch to carefully tap out the hub if it's stuck.
6. Installation of the New Hub: Carefully install the new hub, ensuring it's seated correctly. Tighten the retaining bolts/nuts to the manufacturer's specified torque. Refer to your repair manual.
7. Reassembly: Reinstall the rotor (if removed), the brake caliper, and the wheel. Torque the lug nuts to the correct specification.
8. Lower the Vehicle: Carefully lower the vehicle and remove the jack stands.
9. Final Check: Check for proper wheel rotation and listen for any unusual noises. Double-check that all bolts and nuts are properly tightened.
Important Considerations:
* ABS Sensor: Some Chrysler 300Ms have an ABS sensor integrated into the wheel hub. If so, you'll need to carefully transfer the sensor to the new hub.
* Bearing: The wheel bearing is often integrated into the hub assembly. Replacing the entire hub assembly is generally recommended, as replacing just the bearing can be difficult.
* Torque Specifications: Following the correct torque specifications is crucial for the safety and longevity of the repair. Use a torque wrench and consult your repair manual.
Disclaimer: This information is for general guidance only. Always consult your vehicle's repair manual for specific instructions and torque specifications. If you're not comfortable performing this repair yourself, take your vehicle to a qualified mechanic. Incorrectly performing this repair could lead to serious damage or injury.
