Tools You'll Likely Need:
* Jack and Jack Stands: Essential for safely lifting the vehicle. Never work under a vehicle supported only by a jack.
* Wheel Chocks: To prevent the car from rolling.
* Lug Wrench: To remove the wheels.
* Socket Wrench Set (Metric): You'll need various sizes.
* Ratchet and Extensions: To reach difficult-to-access bolts.
* Wrench (possibly): Depending on the shock design, you might need an open-end or box-end wrench.
* Penetrating Oil (PB Blaster or similar): To loosen rusted or seized bolts.
* New Rear Shock Absorbers: Make sure you get the correct replacements for your Mark VIII.
* Shop rags or paper towels: To keep things clean.
* Torque Wrench (highly recommended): To tighten bolts to the manufacturer's specified torque. Improper torque can damage components.
General Steps (This is not a substitute for a repair manual):
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks on the front wheels. Raise the rear of the vehicle using the jack and securely support it with jack stands.
2. Remove the Wheel: Remove the lug nuts and carefully take off the wheel.
3. Locate the Shock Absorber: The shock absorber is typically attached to the rear axle and the vehicle's body.
4. Disconnect the Shock Absorber: This is where a repair manual becomes crucial. There are usually bolts at both the top and bottom mounting points of the shock. You may need to use penetrating oil to loosen rusted bolts. Note the orientation and position of any components before removing anything.
5. Remove the Old Shock Absorber: Once the bolts are removed, carefully lower the old shock absorber. It might be compressed, so be cautious.
6. Install the New Shock Absorber: Carefully install the new shock absorber, ensuring it's correctly aligned with its mounting points.
7. Secure the New Shock Absorber: Tighten the mounting bolts to the manufacturer's specified torque using a torque wrench. Do not overtighten.
8. Reassemble: Reinstall the wheel, tighten the lug nuts to the proper torque, and lower the vehicle.
9. Check Your Work: After lowering the vehicle, double-check that all bolts are tight and that the new shock absorbers are functioning correctly.
Important Considerations:
* Suspension Compression: Some rear shock absorbers might be pre-compressed. Your repair manual will indicate this.
* Rust and Corrosion: On older vehicles, bolts can become severely rusted. Use penetrating oil and allow sufficient time for it to work. Consider using a heat gun to help loosen them (use caution to avoid damaging surrounding components).
* Torque Specifications: Using a torque wrench and following the manufacturer's specifications is critical to prevent damage. Incorrect torque can lead to premature failure or damage to other components.
Disclaimer: This information is for general guidance only. Improperly installing shock absorbers can be dangerous. If you are not comfortable performing this repair, take your vehicle to a qualified mechanic. Always refer to a repair manual specific to your 1998 Lincoln Mark VIII for detailed instructions and safety precautions.