SB bell housing

limegreen70 said

So to clarify. Ma had 2 Small block Bell housings. 1 for the standard 833 and the other for the OverDrive 833?

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Many. Different bearing retainer bores, different linkage mounting, different flywheel diameters, different transmission patterns, etc. Not to mention the later NV and AX 5 sp. bellhousings from trucks; as Rusty said, be aware.
For example:
Brewer's Performance - Mopar A833 4-Speed Transmission and Component Specialists (brewersperformance.com)