These Brackets (IRS or SRA) will allow you to run 13-14 GT500 Rotors with any stock 94-04 Calipers. These are compatible with GT or Cobra style axle brackets but does require cobra style caliper brackets (Cardone 141042).
 
This rear setup compliments the XTS/14" Front Brake setup.
Foxbody requires SN95 rear disk brake swap
Requires 18” wheels - May require low profile style hose (Maximum Motorsport MMBK12R
 
unmodified factory (13-14 GT500) rotors
factory (03-04 Cobra) pads with insulators removed
unmodified factory (03-04 Cobra) caliper
working parking brake
optimal ~70/30 brake bias
 
 
See installation notes on Instructions Page