I don't think any 59's had paper type filters. Is the airhorn the same size as the pickup's???
If you have a thread point in the airhorn the carburetor is most likely a Rochester BC unit, and that was used on cars. I see lots of them on trucks mainly because people seem to loose or toss the oil bath aircleaners. The model B carburetor has a pipe looking airhorn that the aircleaner clamps on to kinda like a fancy hose clamp of sorts. The stud is something that is part of the aircleaner and does not hold it to the carburetor. That is if you have the correct carburetor.

Kicking self for selling off my Taskforce trucks.
Still looking for an LCF or conventional big bolt in decent shape.


As of 10-26-2022, A 55.2 Taskforce long bed now the work begins