94gt T5 Swap

There's a metal bracket that bolts between the T5 tranny and the tranny mount. If you're missing that, you won't be able to bolt the tranny to the crossmember. Oh, and the crossmember is the same for all 94-95 cars, V6 or V8, AODE or T5. I did a Cobra drivetrain install on my 94 V6 AODE, and simply used my original crossmember. Here's an eBay auction for the bracket:

Mustang H Pipe Hanger Bracket Exhaust Transmission Mount Assy 5 0 T 5 94 95 FBM | eBay

And a better (if smaller) photo of the bracket:

http://thumbs3.ebaystatic.com/d/l225/m/mXJg-BjCnEG8BXlRgupQIzQ.jpg

Also, cars with a manual transmission have an extra shifter "hump" welded to the frame. This will raise the manual shifter up a couple of inches. I can't find a photo anywhere online right now, and there are no aftermarket replacements. I got mine from the wrecked Cobra donor car, where I got the Cobra drivetrain from. Here's some info from Latemodel Restoration, who has a transmission hump and install video for 79-93 Mustangs:

Mustang Manual Transmission Hump Install