Exploded View of Steering Column

ok, this is OEM 68 column from floor shift car that has never been apart.
I'm holding the box couplings cover up so you can see ( I hope ) the race of the bearing in the nylon. So you're asking where is the collar and spring ?
Those are for shifter return and not required.
Actually, in much later models that bearing was changed to a glorified bicycle bearing type so a spring was present to continuously take up wear in the bearing even in floor shift columns