Depends on where it came out of. If its a Termi transmission you need:
-T56 and bell obviously
-27 tooth T56 yoke
-Ford T-56 crossmember
That should be everything. If its the 10 spline input shaft variety you can just leave your clutch/flywheel as is. If its a 26 spline input you need a 26 spline clutch and should get a new flywheel at that point. Just be aware, if its out of a Terminator it has a 2.66 ratio 1st gear. This is not exactly a good thing for a NA 2V. You will need 4.10s minimum to have a usable first gear, I'd do 4.30s personally. Your T-45 has a 3.38 ratio 1st gear for comparison.
Now if this happens to be out of a GM application, sell it because you can't use it. Not without a ton of $$$ in modifications.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.