Here's a general outline. Specifics will vary greatly depending on the engine (e.g., 300 inline-6, 351 Windsor V8, 400 cubic inch V8, etc.) and the specific truck's configuration. You'll need a repair manual specific to your year and engine for precise instructions and diagrams.
Tools You'll Likely Need:
* Socket wrench set (metric and/or standard, depending on your truck) Including extensions and possibly a universal joint.
* Ratchet
* Wrench set (metric and/or standard)
* Jack and jack stands (essential for safety)
* Wheel chocks
* Pry bar (possibly)
* Battery wrench
* Wire brush (to clean connections)
* New starter motor (ensure you get the correct one for your engine)
* Gloves
* Safety glasses
* Shop rags
* Penetrating oil (like PB Blaster)
General Steps (Consult your repair manual for precise details):
1. Safety First: Disconnect the negative battery cable. Chock the wheels and safely jack up the front of the truck. Secure it on jack stands.
2. Locate the Starter: The starter is usually mounted on the engine block, near the bellhousing (where the transmission connects to the engine). Its location varies slightly depending on the engine.
3. Access the Starter: This is often the most difficult part. You may need to remove parts to get to the starter, such as:
* Exhaust components: Parts of the exhaust system might need to be loosened or removed.
* Wiring harness: You might have to carefully unplug the starter's electrical connections and possibly move or loosen wiring harnesses out of the way.
* Shifter linkage: Depending on your transmission type and location, you might need to carefully disconnect parts of the shifter linkage.
* Other components: There might be other brackets or components obstructing access to the starter.
4. Remove the Starter: Once you have access, you'll need to remove the starter's mounting bolts. These are usually accessed from the top or side, often requiring extensions and a universal joint on your socket wrench. Penetrating oil might be needed to loosen stubborn bolts.
5. Disconnect Wiring: Carefully disconnect the positive and negative cables from the starter. Clean the battery terminals and the starter terminals with a wire brush.
6. Install the New Starter: Carefully install the new starter, ensuring it's properly seated. Replace the mounting bolts and tighten them securely to the torque specifications listed in your repair manual.
7. Reconnect Wiring: Reconnect the positive and negative cables to the new starter.
8. Reassemble: Put everything back in place, including any components you removed to access the starter.
9. Lower the Truck: Carefully lower the truck from the jack stands.
10. Reconnect Battery: Reconnect the negative battery cable.
11. Test the Starter: Try starting the engine.
Important Considerations:
* Repair Manual: This is absolutely crucial. A generic description won't suffice. Get a shop manual specific to your 1979 Ford F-150 and its engine.
* Torque Specifications: Always tighten bolts to the manufacturer's specified torque. Over-tightening can damage parts.
* Electrical Safety: Work carefully around the battery and electrical components.
* Mechanical Aptitude: If you're not comfortable working on vehicles, this is a job best left to a qualified mechanic. Improperly installing a starter can lead to damage to your vehicle or personal injury.
This is a simplified overview. Refer to your specific repair manual for detailed instructions and diagrams. Remember safety is paramount. If you are unsure about any step, seek professional help.
