I switched from the FFR-supplied 13" rear brake setup to what is OEM on a 2015+ Mustang.

As far as I remember (and I just tossed the FFR-supplied calipers and brackets into metal recycling) the FFR-supplied calipers are from a 1988 Taurus (or something close to that).

The 2015+ Mustang rear calipers bolt directly to the hub carrier. I may have sourced the bolts (4) from Rockauto.

You can try to invert the rear coilovers if clearance is an issue - I MAY have done that.

I believe that I used this cable: https://www.rockauto.com/en/moreinfo...t=1696&jsn=524

Zoom in on the photo and the 'loop' is there - looks rectangular.

Dave
Gen III Coupe #17