I stated above unless someone can show me proof that these were preferred over the dealer installed and kit included delco-remy style they are not originals to AD trucks. After 60 odd years who knows what replacements were sourced when the originals wore out. I base my contention on Master Parts Catalogs, original pictures, Accessory Installation Manuals, NOS purchases (with factory boxes/part numbers) which all show the Delco/Cole-Hersee switch in these applications.
