The earlier style "school bus" wheel won't work on a later style Saginaw (GM) column. If your column has been swapped the wheel won't work on it, the diameter of the shaft and the splines are different.
If you're looking for the entire column, the DJ postal Jeeps and Jeepster Commando both used the same, or a similar type of column.
And swapping to power steering has nothing to do with the column. You can use any type of column you want as long as you use a lower steering shaft that matches the steering box.
74 CJ5 complete frame off restoration