98 mustang rear end swap with a 96 XR7

[SIXBANGINSTANG]

I recently acquired a 1996 cougar xr7 engine 4.6(4 valve), transmission, and rear end(IRS). I was wondering if anyone had any info on if i can put the xr7 rear in my 98 stang. I own two 98's, and just so happens i need a rear. Will it fit? I have been told yes by the guy who gave me it. If not, I'll just sell the motor trans and rear. Nice condition too. only 45000 on the motor and trans. would like to swap the six in the blown rear car for the 4.6. did it with a buddy, and other than "sticker" price for inspection, it worked out great.
Any Help or ideas, greatly appreciated.