I’m in the same boat as the OP, I have thought of doing the switch many times, but the cost has held me back. It would be going behind a big block, which makes it a little more expensive, since I can’t find a big block 833 out of an A body anywhere!
Depending on your build, and application, which I am not aware of,
the 1X23 spline input can take a licking.
With street tires and suspension, in stock tubs, I doubt it would be an issue.