On my 1967 my harness uses something called Delphi Packard Twin locks. I think in '68 or 69 they switched to Packard 56 connectors. Here's my cruddy bulk head harness. They look pretty similar right?


Here are the other connectors
Twinlock male/female


packard M56 Male

Packard 56 female


The twin locks are both male and female at the same time (aaa oooo). They are hard to find but they have them at a place called PCS connectors. They were also used on boats so they have an evinrude number. They are Evinrude / Johnson 0310680 TERM. PCS makes you order like $15 minimum plus like $5-10 for shipping. I found my twin locks at boat.net. Super cheap if you only need a few. I bought like 16 connectors and paid a whopping $8-9 including my $2 shipping. Worth checking out if we are talking about the same connectors. Also if you only need a few I have some i can send you. You will need a special crimper though.