A833 inside swap

Well here it goes my first thread.
I have 3 A833 trans 1. from 73 340 Dart Sport 2 One came from a
65 Dart GT But has a 1967 date stamp on it. 3rd one came out of
I think 71 B body I got it for parts.

My question is I wanted to use the 67 trans but front bearing retainer
is smaller than the hole in the aluminum bell hoising.
I'm thinking the holes should match.

The older trans had a cast iron bell housing and I think it came from
a 273 motor.

The motor in front of the trans is a 71 340 bored .030 purple shaft stock cam from 1971 pistons are o decked and heads have the big valves in them Should be in the factory 275 HP.

Can the insides be switched from older trans to the newer trans.

better take the newer trans you have
the side covert and fork suppose to be stronger
synchrostop are larger and work alote better
if you wanna rebuilt it mancini offer a nice rebuilt kit(bearing)
make sure you dont try to mix od trans part and the other
they doesnt have the same ratio and the gears are
as I can say back ward as the other(3 and 4 gears)