I posted this on the main board and then remembered that I probably should have asked over here, so pardon the repetition, but I am interested in finding as answer just to satisfy my curiousity.

There are 2 1945 2N's for sale locally, and looking at them has raised a question to which I haven't found an answer. One tractor has the standard air cleaner, and the other has the vertical, through the hood, extension. The question is, was the extended air intake a factory option? I've seen it on a '41 9N, so I assume that it was a fairly early option in any case. Anyone know anything at all about the history there?

By 1945 there had been about 3 different air cleaners. The closed tops were bad about stopping up. The through the hood air cleaner top solved this problem. Yes there was a option for the through the hood top.

I BOUGHT A VERTCIAL CYCLONE CLEANER THAT GOES ON TOP OF THE PIPE THOUGH THE HOOD OPTION. CAN YOU TELL ME WHERE TO GET THE PARTS TO CHANGE MY 1940 9N TO THE THROUGH THE HOOD TYPE? SO I CAN SHOW OFF MY FIND. PICKED IT UP FOR 5 BUCKS THE GUY SAID IT CAME OFF HIS 8N
ON THE JAR IT SAYS " ATLAS STRONG SHOULDER MASON" IT IS IN PERFECT SHAPE.
THANKS
MARV