I'm not aware of any 93 Cobra sized rear disc's that are in five lug. Unless you can find someone to redrill them your originals. I would just spring for the 94-up Cobra rear discs brakes, 11.65" diameter compared to 10" dia.Yeah I didn't figure.... How do i do this and keep my origional rear disk brakes on my 93 cobra? If i buy those North Racecar brackets don't i have to use a 94+ brake setup in the rear? I wanted to Run a foxbody length axle, and keep my factory rear disk brakes. Can I do that?