Fox T-Bird/Cougar Forums  

You'll need the Cobra axle plates if you want to use the Cobra rears.  They are different from the smaller V6/GT rear axle plates.

I did it on my '83. I don't have pictures of the rears, just the fronts.  Yes, you need the rear caliper brackets from a Cobra, but the rear calipers themselves are actually the same as any other SN95.  The front dust shields are no longer available from Ford but the fronts are.  You can go without them or find a donor Cobra.

I have the Cobra brakes on my 83 and the 93 and you will be absolutely floored at the braking improvement.  I had the SN-95 GT brakes on the Coupe which was a dramatic improvement over the SVO 73mm front brakes and the stock drum brakes.  On that setup I ran a set of 99 V-6 calipers as they are two piston calipers and they only required a little grinding on the spindles to get them to clear.  I also ran the Hawk HP pads which definitely helped with the stopping power.  I switched to the Cobra setup about two years ago on that car and installed the Cobra brakes on the Bird a little over a year ago.

The dust shields for the SN-95 GT cars work with the Cobra brakes just fine as that is what I used on both of my cars.  You can get them here:

http://www.latemodelrestoration.com/products/Mustang-Brake-Dust-Shields

If you have not ordered any of your brakes yet then look for kits as they typically come with all of the stuff you need including the dust shields.

If you want to keep the stock Fox length axles then you will need to get a set of these rear caliper brackets:

http://www.northracecars.com/Brakes.html

Its the bracket only and the one for the Cobra.  This is what I used on my T-Bird with a Fox Mustang 8.8 and Fox Mustang Moser axles.  With the correct offset on the wheels it allows a 305 width tire with no sheet metal work.

I have a ton of pics of the installs if you want to see them.

Darren

FYI
http://vb.foureyedpride.com/showthread.php?t=105149

Those should be the "proper" Cobra brackets.

If I go with this kit can I use the calipers from my 87 T.C?

http://www.summitracing.com/parts/FMS-M-2300-M/?rtype=10

Chuck,

I worked over the Mustang sites and it appears by all measures one should not use the T-Bird 45mm Varga calipers when doing the Cobra rear conversion.  The SN95 mustang rear calipers are all the same from the V6 cars to the GT to the Cobra and the are the 38mm Vargas.  What is different is the caliper bracket and it gets a bit more confusing so let me try and explain what I had to do on my Coupe.  I had originally converted the car over to the base SN95 GT Mustang brakes with the booster and MC and ABS out of the same car.  Brakes were awesome for several years.  I decided to move up to the Cobra brakes for those times when I could actually get to a road course and need the larger brakes.  The front conversion was swap rotors, bolt on loaded calipers, and install new SS braided lines.  The rear was not too bad as I had heard you could reuse the rear calipers but needed to swap over to the Cobra brackets.  I bought the same kit the OP is looking at and found only one problem.  There are actually two brackets in the rear.  There is the one in the kit that bolts to the axle  and then there is the one the caliper is fastened to on the sliders which bolts to the brackets in the kit.  It is the ones on the caliper that are different to compensate for the larger diameter of the Cobra rotor.  Fortunately these can be had at Autozone for about $12 each.  I will post some pictures of each when I get home to point out the differences.  The other difference is that the Cobra pads are thinner than the GT/V6 pads and some of the parts stores show them to be the same only for you to get home and swear that something is all jacked up.  I know several guys have simply ground the stock GT caliper brackets to clear the Cobra rotors but I opted for the Cobra caliper brackets.

Another thing to be very wary of is aftermarket axles.  They tend to not be the correct length which can cause the need to shim the caliper brackets out if they are longer or as my case was mill the bosses on the caliper bracket mounting points to move them inward.  I have pic of that I can post as well.

Darren