* Inline-6 (240 or 170 cubic inches): These engines used a different distributor than the V8s.
* V8 (289, 302, 351, 390, or 428 cubic inches): Each V8 could have slight variations in distributor specifics.
To get accurate information, you'll need:
1. Identify your engine: Look for an engine ID tag (often on a valve cover or the engine block itself). This tag will give you the engine's cubic inch displacement (e.g., 289, 302) and sometimes other identifying codes.
2. Obtain a repair manual specific to your engine and year: A factory service manual (FSM) or a Haynes/Chilton manual for your specific 1968 Ford F-100 and engine is invaluable. These manuals provide step-by-step instructions, torque specifications, and diagrams crucial for a proper installation.
General Steps (These are *very* general and will vary depending on the specific engine):
* Remove the old distributor: Disconnect the wiring, remove the distributor cap and rotor, then carefully remove the distributor itself. Note the position of the rotor before removal – this is crucial for timing.
* Inspect the distributor shaft: Check for wear and tear. Replace if necessary.
* Install the new distributor: Carefully lower the new distributor into the engine block, ensuring it seats correctly.
* Align the rotor: Align the rotor to the correct position relative to the distributor shaft (as noted when you removed the old one). You will likely need to turn the engine (using a wrench on the crankshaft) to align it properly.
* Connect the wiring: Reconnect all wiring harnesses according to your repair manual.
* Install the distributor cap and rotor: Make sure they are properly seated.
* Set the ignition timing: This is critical and requires a timing light. Your repair manual will detail how to properly set the timing for your engine.
Without knowing your specific engine, I cannot provide detailed instructions. Providing the engine information will allow me to give you more specific guidance or point you to resources with relevant information.
Remember, working on ignition systems involves high voltage. Be careful and disconnect the negative battery cable before beginning any work. If you're unsure about any step, consult a professional mechanic.
