904 Questions

Not getting information that I need in another site I decided to try it here. I have a 72 340 Cuda with a 1977 904. Last summer the snout of the torque converter failed. I now have a 1982 slant six transmission and took the 4 planetary set, low geart set and reverse drum, front pump and wanting to transplant it into my V8 904. What considerations should I be aware of? This is my first attempt at an automatic repair.
Author: JonC