3 speed column shifting weirdness?

That is actually something I hadn't tried yet, so I just did. Unfortunately, with both shift rods disconnected from the column, the shift lever still only moves up/down. It won't budge to move it over and select 1/R.

One other thing to mention: Turning the steering wheel causes the shift lever to move up and down slightly. I suspect that SOMETHING is stuck between the actual steering shaft and the shift components, though I didn't see anything when I partially disassembled it a couple weeks ago. May have to yank the entire column and completely disassemble it.

Thanks for the new ideas!

Yep, either something jammed or in the way of it moving far enough.
The dragging on the shifter when turning the wheel is a good indication it needs attention inside it.