It looks like it was original to your car - it was used in two applications:
BTW, that screenshot came from the parts manual that you can find online here, along with a number of other helpful documents.
Thanks for the help guys.That link helped out a lot.
Speedfreek, hopefully you can bring your SF to Carlisle this year for the 60th Anniversary of our 59 Plymouth’s ! Dan (Faulkner) is the driving force behind rallying as many 59 Plymouth’s as we can for this year! Lots of whitty banter and info about it in the “what’s new” forum.