Will the 2004 Mustang cobra IRS fit in 1999 mustang cobra
Yes, just follow this link and it should answer all your questions. http://www.allfordmustangs.com/forums/v6-tech/184708-1999-2004-mustang-cobra-irs-swap.html
Most people I know went the other way, they put a live axle in place of the IRS. Are you going road racing?
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