Torque converter Trouble

Maybe she already hit bottom?
When she drops down, the mounting lugs only need to be ~1/4 inch below the face of the bellhouse, maybe even a lil less. The pump is only about 1/2" wide, but when the snout drops in it goes to near the end of the machined slots, which is quite a ways Maybe 5/8"(guessing). So the TC will drop from ~3/8 above the face to ~1/4 below the face.
I don't suppose the Trans is a loc-up, with the un-machined pilot on the end of it? This trans needs a matching loc-up specific TC.
A standard 904 has splines machined right to the end, and needs a matching TC.