There is no aftermarket bellhousing for the 4.0. It won't work.
You're right .... but there are a couple of factory bellhousings that will work.
Either a bellhousing from a 2.8L V6 Mustang II with a T4, or the bellhousing out of a 05-present 4.0L Mustang with a T5.
so if i get a tranny from a 05 an on it will bolt up to a 94 4.0 liter?
Yes, It'll bolt up, but you'll have to do something about the remote mount shifter... Unless you've got really short arms.