Ford never used a Mopar NSS circuit (to be clear.) BUT AMC did. It "looks like" a Ferd solenoid, has the I and S terminal, and an additional "quick connect" bullet terminal which gets grounded through the NSS. I assume these were used in some AMCs with Torqueflites

Those solenoids are expensive and difficult to find.

Frankly, why not just leave the Mopar start relay as it is, then run the square solenoid terminal back to the Ford solenoid?

Last, I see no reason to do things that way, IE use a second solenoid. I see no advantage, and you add a second set of contacts in series, so you have that much more chance of voltage drop problems.

Here's the AMC relay / solenoid. The NSS terminal is the one sticking up vertically

http://www.rockauto.com/catalog/moreinfo.php?pk=929440&cc=1003509

annudder




There IS one other way you could use just a Ferd solenoid with a Mopar NSS, although some might say "hokey." You could mount the Ferd solenoid on an insulator block, and hook the NSS switch to the Ferd mounting flange.