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I'm looking at buying a 140 that I thought was an H1. Upon further investigation of the pictures, I saw a set of hydraulic ports in the back. There is only one lever tho so that's why I'm confused. Is this something somebody added after factory or what? I am assuming that this would limit the...

I have seen some people restoring there 110 120 140 deeres and putting an air breather that is a miniature of the air breather on the full size 4020 and 3010. I am wondering where I can get one or how I can make one? Any help is great