Not Ranked
there are a few versions of ford 9in rears with irs in the street rod side of the sport--however they all are mostly set up for show and not performance-at least nothing that comes close to getting the max performance out of the ford
You might want to look at a rear out of a 90-96 c4 corvette--aluminum dana 44, suspension allready worked out, brake availability and will be fairly easy to mount in the cobra
Jerry
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