I did some Google work for ya, and found this site -
http://www.fordmuscle.com/archives/2...p/index2.shtml
Basically, the trans you are looking at does not have the correct input shaft size, so you are also looking at clutch disc issues if you try to use the Turbo Coupe T5. Between buying a used tranny, then a clutch disc to fit, it's be cheaper to just hold out for a good used WC box.