Hi Matt, sadly it was 10 years ago and I don’t remember what the bolt looked like. I was able to purchase it from one of the normal Falcon suppliers.
I found my 4-lug 8” rear at Pick-n-pull in Lynnwood. I think it is 3/4” wider than the little stock guy but people have had luck installing as is. I need to get it clean and painted for installation later this summer. I plan on swapping the backing plates from my wagon as they allow wider shoes. It is the 2.79:1 ratio.