Stock 95 GT front brakes, rear 03 Cobra brakes.

The calipers will work. They are the same as the solid rear calipers.

It's just that the '03 Cobra uses an IRS, so everything else (mount brackets, anti-moans, hoses) are different.

But if you have the calipers, you are ok. You'll just need to get the north race car brackets, anti-moans and other parts for a solid rear car
ohhhhhhhhhhh I understand. So I have the calipers, caliper brackets, but am planning on buying the northrace car brackets to keep stock track width. I also already have stainless lines for the rear calipers which were off of the cobra but I am going to reuse these. I have to completely redo the rear solid brake line anyways so I will make this work.

What a relief
 
Do you have the rear calipers off of an 03 cobra on there? I was just looking at mine in the garage and I dont understand why they wont work. They have a traditional two bolt mount like any other caliper

I cannot remember what year cobra the rear brakes came off of, but I do have the north racecar brakets on there and they fit perfectly. Oh, and they will work without the anti-moans but I would suggest getting them as the rear brakes will make an annoying moan noise (hence the name) every time you go around a corner without the anti-moan brackets.