[Keith Seymore]

I am in general agreement with what has been posted so far, but would like to add some color commentary and then give you my opinion -

First, just to clarify the naming convention and make sure we are talking about the same thing:

Assembly Manuals, also called "PADs" (Product Assembly Documents) or "PDMs" (Product Description Manuals) are the directions that the assemby line workers used to put the cars together, just like a giant model car kit. They look like this:





I mention this to distinguish them from Service Manuals or Repair Manuals, which we are generally more familiar with, and which detail the breakdown of the assembly components.

Assembly Manuals are often available today to collectors by model type. I've seen F Car manuals and Light Truck manuals, as well as later model year A car (including GTO). This is really amazing considering we used to throw them away when we were done with them at the end of a model year.

Unfortunately, we ('64/'65 GTO enthusiasts) do not think Assembly Manuals for '64-'65 GTO are available publicly. I am aware of one set here locally, locked away in a bedroom and not being made available for viewing. That's a different story for a different day.

Secondly - I'd like to discuss wire harness content briefly. Generally, for production line use harnesses are proliferated based on content. This is based on piece cost considerations (harnesses with fewer wires and connectors are cheaper to produce, which adds up over high production volumes) and because of durability concerns (open connectors allow water ingress which causes corrosion and subsequent electrical problems). Taping of extra wires back is normally avoided but evaluated on a case-by-case basis and might be done when a specific program team is willing to accept the risks to avoid part proliferation at the plant.

Service parts are often "overreleased", meaning all of the content is included in one harness part number to avoid proliferation and stocking of multiple parts. It sounds like that's what the aftermarket manufacturer of your harness did in this case (so they can make and offer one harness to cover a multitude of usages).

I apologize for all this detail, especially if I am telling you something you already know, but I say all this to say:

a) The assembly manuals you are looking for are not available

and

b) I don't think they will help you anyway.

Assembly manuals do not show that level of detail (like wire harness pinouts). I think you need the appropriate service manual - or - better yet - I think you need to get that detail from your specific wire harness manufacturer.

Hope that helps -

K