I had to replace my master cylinder(wanted to wait till I did my big brake swap, but...mushy...), and I was loosening the bleeders, before I put the juice in, when I broke one off on the 8" rear end!!! After a quick recital of my favorite curses, I went and checked a 4link 7.5" rear end, just to see if it the same bleeders, maybe wheel cylinders. To my surprise it had all exactly the same brake components as my mustang II 8". Much better condition though, so I swapped it all out, with the goods on the m2 8". Don't really want to put any money into it, irs is coming.
Perhaps it's old hat to some of the heady ford dudes, but I thought that was cool... and lucky!