It is a 3rd gear synchro, they're a problem spot on these trannys. My suggestion is to use the search feature and find out more info on it and possible fixes. Usually a fix is about $1000+ in labor. My 99 SVT has the same problem.
2000 Ford Contour SVT-t
GT28R - 287whp/314wtq @ 11 psi (very little tuning)
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