I started out with this:
No one wants to stop on drums brakes anymore.. and they're made for the 6 cylinder, so that's probably not going to work, either.
Pulled the drum and here we are. What's cool about a 1966 and up Mustang is that they wear the same spindles for V8 and 6 cylinder.
So tear all the brakes off, including the lines and you're left with a bare spindle. Ewww. Naked.
This is the attachment for the new 4 piston calipers. It slips on behind the backing plate.
I bought Summit brakes, because I know that they're really just rebranded SSBC.
If you haven't bought one of these tools, it will change your life. Not really, but you wont have to pack bearings against your palms and end up looking like a toddler after a bad spaghetti episode.
Tap the wheel seal in and install the front bearing, washer, spindle nut and cotter pin after setting bearing lash.
