47-55.1 Steering column seal at floor, 4 speed or 3 speed?

[MARTINSR]

So my floor has a hole in it that would have room for the column shift and steering column to pass through (no. 1) . I am not going to run the column shift, so I don't need the hole above the column for it. In this LMC catalog they show two different seals, ok, that makes sense. But they look like they are for a round hole or an oval hole in the floor (no 1 and no 2)

I have never seen one of these trucks with a different hole than the oval one, I have owned two cabs, both of them had the oval hole. Were four speed trucks made with a different floor/firewall, I find that VERY hard to believe.

The round one doesn't have holes for the bolts, I don't understand this, any ideas? I thought there must be some metal piece that covers the hole up making it round that then this round seal went on, that makes some sense. But I don't see anything like that in the catalog and they sure have everything I have to wonder.

Brian