Switching to manual steering. Column coupler up to the task?

Dana67Dart said
The coupler is not an issue but the shaft length is too short for the power column.

There is an adapter sold to adapt the power column to a manual box.

Pricy but functional.

View attachment 1716153853

As for strength... no issue

I used that same adapter on my 70 Duster w/manual & OE PS column and it worked fine.