360 4-speed set up

Hi Guys

New member here. Just want to say this is a great site with helpful people and great information.

I do have a question regarding setting up a 4 speed transmission to a 360 motor.

Question for you to see what i will need.
I am converting a 1974 duster from auto to manual.
I'am also swapping out motor. Car is original 318.

I will be putting in a 360 with a the 4 speed 833.
The transmission is a A body 4 speed Trans with 23 spline from 1968 to 1970 Dart/Duster.
I have a 360 flywheel and a bellhousing that will fit the Flywheel but he hole in it is a bit to big for the smaller input off a 340 Transmission.
So my question is ....do all I need is a different bearing retainer for the transmission?

cheers