Here's a general overview of the steps involved. This is not a complete, step-by-step guide, and skipping steps or improper execution can lead to damage or injury.
Tools You'll Likely Need:
* Jack and jack stands: Crucial for safety. Never work under a vehicle supported only by a jack.
* Wheel chocks: To prevent the vehicle from rolling.
* Lug wrench: To remove the wheel.
* Torque wrench: Essential for tightening bolts to the manufacturer's specifications.
* Socket set and wrenches: A variety of sizes will be needed.
* Ball joint separator: To separate the ball joint from the control arm (may require a pickle fork as well, but a separator is preferred to prevent damage).
* Hammer and punch: Possibly needed for stubborn components.
* Brake caliper compression tool: To compress the brake caliper piston.
* Hub nut socket: This is often a large, specialized socket.
* Wheel bearing press: This is essential for safely pressing out the old bearing and pressing in the new one. A DIY method is possible, but significantly increases the risk of damaging the hub or new bearing.
* Penetrating oil (PB Blaster or similar): To help loosen rusted or seized components.
* Clean rags and shop towels: To keep things clean and organized.
* New rear wheel bearing: Make sure you get the correct part number for your vehicle.
General Steps (Consult your repair manual for specifics):
1. Safety First: Secure the vehicle on level ground using jack stands and wheel chocks. Engage the parking brake.
2. Remove the Wheel: Remove the lug nuts and take off the wheel.
3. Remove the Brake Caliper: Use the brake caliper compression tool to compress the brake caliper piston. Then remove the caliper and hang it safely out of the way (using a bungee cord or wire).
4. Disconnect the ABS Sensor (if applicable): Carefully disconnect the ABS sensor wire from the hub assembly.
5. Remove the Rotor (or drum): Depending on your model, you might need to remove the rotor or drum.
6. Separate the Ball Joint (if necessary): You may need to separate the lower ball joint from the control arm using a ball joint separator. This is often the most challenging part of the job.
7. Remove the Axle Nut: This is usually a very large nut. Use the correct socket and apply significant force (impact wrench recommended). Mark its position relative to the hub if you can, to aid in reassembly.
8. Remove the Hub Assembly: With the axle nut removed, the hub assembly should be able to be separated from the knuckle. This might require some persuasion with a hammer and punch (use caution to avoid damage).
9. Press Out the Old Bearing: Use the wheel bearing press to carefully press out the old wheel bearing from the hub assembly.
10. Press In the New Bearing: Using the wheel bearing press, carefully press the new wheel bearing into the hub assembly.
11. Reassembly: Reassemble everything in the reverse order of disassembly, ensuring all bolts and nuts are tightened to the manufacturer's specifications using a torque wrench. Pay close attention to the axle nut torque.
12. Test Drive: After reassembly, test drive the vehicle to ensure everything is functioning correctly. Listen carefully for any unusual noises.
Important Considerations:
* 4WD Models: 4WD models will have additional components to disconnect and reconnect.
* Torque Specifications: Use a torque wrench and consult your repair manual for the correct torque specifications for all bolts and nuts. Incorrect torque can lead to premature failure or damage.
* Professional Help: If you're not comfortable with this level of auto repair, it's best to take your Escalade to a qualified mechanic. Improperly replacing a wheel bearing can lead to serious safety issues.
This is a simplified overview. Always consult a repair manual specific to your 2007 Cadillac Escalade before attempting this repair. A Haynes or Chilton manual is a good investment for DIY auto repair. Improper repair can lead to dangerous situations. If in doubt, consult a professional.
