Column shift converting to B&M floor shifter

What else do you need to know?

I don't know how a 75 column compares to a 73, but as I recall on my car:

-shifter should come with everything you need to make that piece work.
-just cut off of the column everything shifter related and remove all linkages
- IIRC, I just welded the rotating part of the column (in the link above) in the PARK position so the key could be inserted or removed as normal.
- no need to touch the steering lock mechanism as long as you remember not to turn the key to OFF if you are driving the car and need to steer.

Hope this helps. It really is pretty straightforward, at least in my experience.