I am not sure exactly what year these cobra R 17x9 wheels are on my 1990 but I think they are pretty recent. Take a look. I hope it helps? They rub quite a bit and my turning radius sucks. They look very cool though. Its a trade off!
http://members.mustangworks.com/jpumpkinn/
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Red 90 5.0, 17in Cobra Wheels, Saleen Wing, Cobra Rear Bumbper, K&N intake, Dual Flowmasters, Hurst Shifter, 5 lug conversion, cobra brake upgrade