Was checking for details related to another thread and though what I found didn't apply to that question I thought I should post for the benefit of others. Used it in a past MCA Times article but surely its new to many of you
TSB article #78 (reworded from original text)
Voltage Regulator: Had a problem from excessive gap between the field relay armature and magnet core. which caused a buzzing sound. Vehicles assembled after Oct. 26, 64 have a revised regulator that can be identified by a daub of yellow paint above the "A" in Autolite or the line under the word Autolite has been deleted. #262 The marked covers should be found starting Oct. 26 through mid 1965 when stock would have been purged of all stock.
Another details for all of you earlier guys to check for