Hey so I have a 99 gt and I needed a new clutch. So I went and bought one for my year which would be the t45. After going to install I got the news that the garage took the tranny off and the clutch disk didn't fit at all. So it was the wrong one. I looked into the car more and had a report done only to figure out it was originally a auto. So someone put in a new manual tranny and possibly a new engine. I need a new clutch but I need to know how to figure out which tranny and engine I have without using the Vin. I have to buy the correct clutch... Any help would be appreciated. Thanks!!