Tailshaft swapping an RV 727, What output shaft is correct?

Vamisk said
Based on that i'd say i accidently bought a 904 housing.

Yes i have an RV stubby 727 and a matching 440 that i also want to use. I'm going to try and use the same torque converter.
View attachment 1715203236

Odd looking converter for a Chrysler. Where's the ring gear? Chrysler has the ring gear welded to the 727/904 converter. Looks like a Jeep/AMC converter to me.