Here's a general outline of the process. This is NOT a complete guide and should be supplemented by a repair manual specific to your 1993 Ford Ranger's axle type (8.8" is common but not guaranteed). Repair manuals provide detailed diagrams and torque specifications crucial for success.
Tools and Materials You'll Need:
* Repair Manual: Absolutely essential for specific procedures and torque specs.
* Jack and Jack Stands: Safely lift and support the vehicle.
* Wheel Chocks: For added safety.
* Lug Wrench: To remove the wheels.
* Sockets and Wrenches: Various sizes, including those for axle nuts, drain plug, and any other related fasteners.
* Pry Bar: Possibly needed to separate parts.
* Hammer and Punch: Might be needed for stubborn parts.
* New Axle Seals: Get the correct ones for your specific axle.
* New Axle Bearings (Possibly): Often recommended to replace these at the same time, as damage to the seals often indicates bearing wear.
* Gear Oil (correct type and amount): Refer to your repair manual.
* Drain Pan: To catch old oil.
* Clean Rags or Shop Towels: For cleaning.
* Penetrating Oil: To help loosen rusted or seized bolts.
* Torque Wrench: Critical for proper tightening to prevent damage.
General Steps (This is a simplified overview):
1. Safety First: Secure the vehicle on jack stands, engage the parking brake, and use wheel chocks. Disconnect the battery's negative terminal.
2. Remove the Wheel and Brake Drum/Rotor: Remove the wheel, then the brake drum (if drum brakes) or rotor (if disc brakes).
3. Drain the Differential: Locate the differential drain plug and carefully drain the gear oil into a drain pan.
4. Remove the Axle: This is the most challenging part and varies significantly depending on your axle configuration. You'll likely need to remove the axle flange retaining nut, and potentially disconnect brake components and other linkages. A repair manual is *absolutely critical* for this step.
5. Remove the Old Axle Seal: Use a seal puller (ideally) or carefully pry out the old seal, being careful not to damage the axle housing.
6. Install the New Axle Seal: Carefully install the new seal, ensuring it's seated correctly. A seal installer tool is helpful.
7. Reassemble: Carefully reassemble the axle, ensuring all components are properly seated and tightened to the specifications in your repair manual. This includes the axle flange nut, which requires a specific torque setting.
8. Reinstall the Brake Drum/Rotor and Wheel: Make sure everything is properly aligned.
9. Refill the Differential: Refill the differential with the correct type and amount of gear oil.
10. Check for Leaks: After driving a short distance, check for leaks around the axle seals.
Important Considerations:
* Axle Type: Knowing your axle type (e.g., 8.8-inch) is vital for getting the correct parts.
* Bearing Replacement: Replacing the axle bearings simultaneously is highly recommended. It's far easier to do it while the axle is out.
* Torque Specifications: Incorrect torque can lead to premature failure and damage. Use a torque wrench and follow the specifications in your repair manual.
* Repair Manual: This cannot be stressed enough. A repair manual specific to your vehicle is essential for a successful repair.
This is a simplified overview. Consult a repair manual specific to your 1993 Ford Ranger for detailed instructions, diagrams, and torque specifications. If you are not comfortable with this level of vehicle repair, take it to a qualified mechanic. Improper repair can lead to serious damage and safety hazards.
