Tools and Materials You'll Need:
* Repair Manual: Absolutely essential for specific torque specs and procedures.
* Jack and Jack Stands: Securely support the Jeep.
* Wheel Chocks: For safety.
* Socket Set and Wrenches: Various sizes for removing nuts, bolts, and axle components.
* Pry Bar: May be needed to help separate components.
* Hammer and Punch: For removing old seals and possibly installing new ones.
* Seal Installer/Driver: A specialized tool for carefully installing the new seals without damaging them. A socket of the correct size can sometimes be used as a makeshift installer, but a proper tool is best.
* Penetrating Oil (PB Blaster, etc.): To loosen rusted or seized bolts.
* New Axle Seals: Get the correct seals for your axle type.
* Grease: For lubricating the new seals and axle components.
* Clean Rags or Shop Towels: To clean parts and prevent contamination.
* Torque Wrench: Crucial for tightening bolts to the correct specifications.
Procedure (General Outline - Consult Your Repair Manual):
1. Safety First: Disconnect the negative battery terminal. Securely jack up the Jeep and place it on jack stands. Engage the parking brake and use wheel chocks.
2. Remove the Wheel and Brake Caliper: Remove the wheel and carefully remove the brake caliper, supporting it to prevent stressing the brake line.
3. Remove the Rotor or Drum (depending on your brakes): This will give you access to the axle flange.
4. Remove the Axle Flange Nuts: These nuts can be very tight. Use penetrating oil and a breaker bar if needed. Note the position of the nuts, as you'll need to reinstall them in the same orientation.
5. Remove the Axle Flange: You may need to use a pry bar to gently separate the axle flange from the axle housing. This can be the most difficult part.
6. Remove the Old Seal: Use a seal puller or a small screwdriver and hammer to carefully remove the old seal. Be careful not to damage the axle housing.
7. Clean the Axle Housing: Thoroughly clean the axle housing bore where the seal sits, removing any debris or old seal material. This is vital for a proper seal.
8. Install the New Seal: Use a seal installer to carefully install the new seal, ensuring it seats properly and evenly. Do not hammer it in directly.
9. Reassemble Everything: Carefully reassemble the axle flange, ensuring it's properly seated. Tighten the flange nuts to the correct torque specification (from your repair manual).
10. Reinstall the Rotor or Drum, Caliper, and Wheel: Be sure to properly bleed the brakes after reattaching the caliper.
Important Considerations:
* Axle Type: The specific procedure will vary depending on whether you have a Dana 30 or Dana 35 axle.
* Torque Specifications: Incorrect torque can damage the axle or cause leaks. Always use a torque wrench and follow your repair manual's specifications.
* Seal Type: Ensure you purchase the correct seals for your axle.
* Cleanliness: Keep everything clean throughout the process to prevent contamination and ensure a proper seal.
This is a simplified outline. You absolutely must consult a repair manual specific to your 1993 Jeep Wrangler before attempting this repair. Improper installation can lead to axle damage and potential injury. If you're not comfortable with this level of automotive repair, take it to a qualified mechanic.
