Over the winter I've been trying to finally sort out the brakes on my 72 Mach 1 clone (it was a base model a previous owner converted to a fastback). I've replaced the MC and prop valve with Wilwood stuff and started to move on the rest of system. The front calipers don't appear to be mustang parts, can anyone help me identify them? The pads themselves look to be roughly 25% smaller than the replacement pads I got, and don't fit in the calipers. I mainly just want to make sure that if I get factory calipers, they'll still bolt up to the spindle, and I don't fall into this rabbit hole of extra work.