Tools You'll Need:
* Jack and jack stands: Absolutely crucial for safety. Never work under a vehicle supported only by a jack.
* Wheel chocks: To prevent the truck from rolling.
* Socket wrench set: Various sizes, including metric and standard.
* Wrench set: Various sizes, including metric and standard.
* Impact wrench (recommended): Makes the job much easier, especially for removing rusted or seized bolts.
* Shock compressor (highly recommended): Prevents the shock from extending unexpectedly and causing injury.
* Penetrating oil (PB Blaster, etc.): To loosen rusted bolts.
* Torque wrench: To tighten bolts to the proper specification.
* Safety glasses and gloves: Protect yourself from injury.
Procedure:
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels. Raise the front of the truck using the jack and securely support it with jack stands.
2. Remove the Wheel: Remove the wheel and tire from the side you're working on.
3. Disconnect the Shock:
* Top Mount: Locate the top shock mount. This will likely involve removing a nut or bolt securing the shock to the frame or axle. Penetrating oil may be necessary.
* Bottom Mount: Locate the bottom shock mount, usually attached to the axle or control arm. You'll likely need to remove a bolt or two. Again, penetrating oil can be very helpful. This step often requires a significant amount of force.
4. Compress the Shock (Important): Use a shock compressor to compress the shock before completely removing it from the mounts. This prevents the shock from suddenly extending and possibly injuring you.
5. Remove the Old Shock: Carefully remove the shock from its top and bottom mounts.
6. Install the New Shock:
* Compression: Keep the new shock compressed with the compressor.
* Installation: Install the new shock into the bottom mount first. Then, carefully align the top mount and secure it with the appropriate hardware.
* Release Compression: Slowly release the compression on the shock compressor.
7. Reconnect Everything: Ensure all bolts and nuts are tightened to the manufacturer's specified torque.
8. Reinstall the Wheel: Lower the truck, reinstall the wheel, and torque the lug nuts to the proper specification.
9. Repeat: Repeat the process for the other front shock.
10. Test: After completing both sides, test the shocks by bouncing on each front corner of the truck. They should rebound smoothly and consistently.
Important Considerations:
* Rust: On a 1979 vehicle, rust is a significant factor. Expect to spend time applying penetrating oil and using significant force to remove rusted bolts. Broken bolts are a possibility.
* Torque Specifications: This is crucial for safety and proper suspension function. Refer to your repair manual.
* Shock Type: Ensure you buy the correct replacement shocks for your specific 1979 Ford F-150 4x4 model.
* Professional Help: If you're not comfortable performing this repair yourself, consider taking it to a qualified mechanic.
This is a simplified guide. Again, consult a repair manual for your specific vehicle for detailed instructions, torque specifications, and diagrams. Improper installation can lead to unsafe driving conditions and potential damage to your vehicle. Safety should always be your top priority.
