hey rick, you should check out a friend of mine in ohio he rebuilds t-5 tranny"s and beefs up the 3" rd gear countershafts and you can get a new tranny for about 800.00 go to his web site
Dayton 5.0 Performance : Welcome to Dayton 5.0 Performance all he does is mustangs.
his name is Mike Bell, tell him dale referred you