First post over here, I only get out of the toyota cave once a year :D

Anyway I'm parting a 78 Blazer for a buddy and I only know Toyotas. What case came in a 78 in a 350/auto? It looks like a 231 maybe? Any help is appreciated. I can post pics later.

itis either a 205 or 203. If it has a long aluminum tail section its a 203 otherwise its a 205

right awn thanks