Here's a general outline of the process. Specific steps may vary slightly depending on your Escape's exact configuration (2WD vs. AWD). Consult a repair manual specific to your vehicle's year and model for detailed instructions and torque specifications. A Haynes or Chilton manual is a good investment.
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 secure the vehicle.
* Lug Wrench: To remove the wheel.
* Socket Set and Wrenches: Various sizes, likely including metric sizes.
* Torque Wrench: Essential for proper tightening of bolts and nuts to avoid damage.
* Penetrating Oil (PB Blaster, etc.): To loosen stubborn bolts.
* Hammer and Punch: Possibly needed to remove the axle.
* Pry Bar: May be helpful for separating components.
* New Rear Axle Seal: Make sure to get the correct seal for your vehicle.
* Brake Cleaner: To clean the axle housing and new seal.
* Grease: To lubricate the new seal.
* Drain Pan: To catch the gear oil.
General Steps (Consult your repair manual for precise details):
1. Safety First: Engage the parking brake, chock the wheels, and raise the vehicle securely using a jack and jack stands.
2. Remove the Wheel: Remove the wheel on the affected side.
3. Drain the Differential: Locate the differential drain plug (usually on the bottom of the differential housing) and drain the gear oil into a drain pan.
4. Disconnect Brake Caliper and Rotor: Carefully remove the brake caliper and rotor assembly. Support the caliper to prevent stress on the brake line.
5. Remove the Axle: This is often the most challenging part. You might need to disconnect various components, such as the axle nut, ABS sensor (if equipped), and possibly the half-shaft. Again, your repair manual is crucial here. You may need to use a slide hammer or similar tool to remove the axle.
6. Remove the Old Seal: Carefully remove the old rear axle seal using a seal puller or carefully prying it out. Be cautious not to damage the axle housing.
7. Clean the Housing: Thoroughly clean the axle housing where the new seal will sit, using brake cleaner. Remove any old seal remnants, burrs, or debris.
8. Install the New Seal: Carefully install the new seal, ensuring it's seated properly and evenly. You may need a seal installer tool to prevent damage. Lubricate the seal's lip with a compatible grease.
9. Reinstall the Axle: Carefully reinstall the axle, ensuring it's properly seated.
10. Reinstall Components: Reassemble the brake caliper and rotor, ensuring proper function. Reinstall the wheel.
11. Refill the Differential: Refill the differential with the correct type and quantity of gear oil (specified in your owner's manual).
12. Lower the Vehicle: Carefully lower the vehicle from the jack stands.
13. Check for Leaks: Check for any leaks around the new seal after driving a short distance.
Important Considerations:
* Torque Specifications: Use a torque wrench and follow the manufacturer's specified torque values for all bolts and nuts. Improper tightening can lead to damage.
* Gear Oil Type: Use the correct type and viscosity of gear oil specified in your owner's manual.
* Proper Seal Installation: Incorrect installation of the seal is a common cause of leaks.
This is a simplified overview. Always consult a repair manual specific to your 2004 Ford Escape before attempting this repair. Improper repair can lead to significant damage, so if you are unsure about any step, seek professional help.