Rob '61MK2, Change from positive ground to negative ground

Are there any manuals that can assist me in the process off changing to a negative ground?

Hi Rob, and welcome to JL.

Here’s a search showing 50 topics which mention polarity change.

It’s pretty straightforward if you haven’t got an electronic ignition, or fuel pump.

Do you have a period radio? There are online resources to assist if you do, as some don’t have a simple polarity change switch. Paul

Didn’t get any seach icon

Oops, forgot to paste the link. Here it is: