Cobra Calipers

The GT & Cobra calipers on front are not the same. The Cobras use a 2 piston PBR caliper. Cobra rotor is 13".
The Cobras & GT use the same caliper in the rear, but the Cobra uses a vented rotor in the rear & is larger. Cobras use a different brake pad due to the vented rotor.
 
No, front cobra calipers are dual piston where the GT calipers are single. Also, the cobra front rotors are 13", and the GTs are not.

The rear setup .....ah, I see someone already got it. The correct info is above......
 
ProjectoStang said:
I was also reading that the only diff in the rear is the bracket the caliper bolts to. Do you guys know anything about that?

The bracket on the axle is longer, giving more room for the bigger rotor. Otherwise, the caliper and its bracket (the part the brake pads sit in) are the same. According to a website or two, you may need to use a file to add a bit of clearance to the caliper bracket. Just check if the rotor in the rear rotates freely, and how close the rotor is to the bracket. Use a metal file to add clearance in the bracket as necessary.

There's a Ford kit that has all the extra pieces you need for the upgrade: M-2300-M. Or you can piece it all together from a junkyard.