Switching to Manual Steering

I believe you'll need a manual steering box, pitman arm for a manual car and a steering column adapter like this

Mopar Performance P4510637: Manual Steering Adapter Fits: A/B/E-Body | JEGS

They might be had for cheaper but that's the first one that came up on google.

You can avoid getting the adapter by replacing the column with a manual column. I believe the steering shaft is longer in a manual column.

It's been years since I've done this so please chime in if I'm not correct here.