Something will have to move forward (Engine), or something will have to move back (transmission) to clear the flexplate from the bellhousing.

Now the starter has to be removed with the engine in the car and if you have headers then you may have to move or drop the left header so the starter will clear. You also have to get the upper bellhousing bolts out with everything snuggled up against the floor.

Drop the trans with the engine and the starter can stay where it's at, the headers can stay (if equipped, and non-fenderwell), and the bellhousing bolts can be removed when everything is on the floor.

Driveshaft, four crossmember bolts, speedo cable, and shift linkage and the trans can stay with the engine. Sooooooo much easier.