I am certainly the Elephant Boy this week.
It has been several decades since I saw a pristine Carabela (Argentian Embassy, Ottawa ON) or a Carabela period (Burlington Vermont annual convention--Mike? Knittel's?? Carabela)
I know that they all came with straight shift, no overdrive (and no automatic), but wasn't it a floor shift? The one I saw in Vermont had one, but that might have been an after the fact fix. What model and make of 3 speed was it? B/W T86 or another model? If they came with a floor shift instead of a column shift, how was this attained? Again, I am thinking possible Studebaker interconnectivity with Kaiser & Jeep