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JD Powershift

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dave g

12-05-2002 11:10:49

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Somebody told me that JD didn't invent the powershift, but bought the idea from Ford. Does anyone know the real story? Thanks.

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G-MAN

12-05-2002 13:32:08

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Re: JD Powershift in reply to dave g, 12-05-2002 11:10:49

I don't believe Deere ever claimed to have invented the powershift. The first "powershift" tractor in agriculture was the Farmall Super M-TA, which uses a mechanically actuated planetary to change speeds without clutching - basically just a high-low unit. What I heard about Ford and Deere is that Deere developed what became the Ford Select-O-Speed, but Deere wasn't satisfied with it and then designed what became their powershift. I don't know if that story is true or not, but I have worked on a Select-O-Speed, and I don't think they are near the transmission that the first Deere powershifts are. I didn't have access to anyone that was familiar with the SOS, and I did all the work using a I&T book, so I was pleasantly surprised when it worked correctly the first time. I had heard horror stories that they were very hard to work on, and they are more complicated than a Deere powershift.

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