73ragtop

I have a 73 mustang and I bought an 8.8 rearend out of a 96 explorer to swap. It was missing the brakes so I need to replace them. I want to add a bigger brake system than the 11" rotors that come on it. Are there any brake systems that will mount up to this rearend, possibly a cobra brake system. The biggest I can find for an explorer is the stock size but I'd like to go to at least 12" or even 13". Has anyone done this or know what will work?