Here is what we're installing, a T-56 from D&D Performance.
The heavy-duty trans comes with the bellhousing
Here is the bellhousing installed & ready for the tranny. The engine block plate requires some minor modification; it gets trimmed a bit for the clutch cable's new position, and I also eliminated a now-unused bolt hole (cosmetic improvement only, not required). The clutch is an FMS King Cobra unit.
The seats & scuff plates are removed, and the seatbelts are disconnected at their floor mounts. I then prop up the carpeting with a couple of 2x6's to keep from punching through it with the drill.
This is a closeup of the modified tranny crossmember. From the factory, there are only 2 slots; I added the center slot for the T-56-specific mount. Also, the large hole was originally two; the center divider has been removed for access to the new mounting location.
As delivered in the Kenny Brown kit, this bracket is missing two important bolt holes; why this is, I don't know.
The passenger-side bracket had all the required bolt holes, & went into place with no hassles. Note the gap between the "L" end of the bracket & the frame; this is so they can be bolted to Kenny Brown brand subframes, which this car does not have. I left this part of the brackets in place, but IMO a better way would be to install some Global West subframe connectors, then cut the L to fit & weld it to the subframes.
The Bassani comes VERY close to the crossmember; I had to modify the shields, as shown here, plus The crossmember had to be trimmed some.
Here is the tranny in position; the last pic is with the X-pipe in place.
About the only exhaust that will fit easily is an offroad pipe, & that would need some modifying, too. Take note! The exhaust fitment is the only major hassle; the rest of the job is pretty much a bolt-in affair. I'd say it's a job for those with at least intermediate wrenching skills, but can be done in a decently-equipped home shop. If you're looking for the ultimate in transmissions for street use, the T-56 is THE ticket.