What are the distinguishing differences between a Case S and Case SO tractors?

It appears that the SO does not have any filters, exhaust pipes, or cleaners above the hood level, and the SO has a hand clutch whereas the S must have a foot clutch.

What are the other differences? Did some of the SO's come with fenders like on an S? Is it possible to find orchard tin for an SO?

Thanks,

Bill Carlton

Bill,
I can only speak for the difference between a D and DO but I am sure that it also applies to the S series. The only differences were minor like air intake changed to avoid branches, exhaust directed downward, lights mounted low, and the addition of orchard tin to make the branches slide past. Case orchard tin was very functional, it just bolted on to the regular fenders w/ brackets. As far as finding any tin, good luck w/ that. Around here (NE WI) most people were too cheap to order it. There seems to be more in MI and FL. The people that did have it quickly discarded it either to change rear tires or because it was so hot for the operator they couldn't stand it. My DO has the brackets for the tin, but of course no tin. You can always trip on a find however. A few years ago I was offered an S for 400 dollars and did not take it (didn't even look at it). Turns out it was an SO with new tin hanging up in the barn along side it. Don

Don,

Thanks for the information. Sounds like me luck also on the SO.