John Deere Powershift transmission explained

The John Deere PowerShift transmission was an eight-speed semi-automatic transmission without a torque converter, used in John Deere tractors, including the iconic John Deere Model 4020.[1] The Powershift is not to be confused with similar John Deere transmissions (including the Quad-Range and the PowrQuad[2]), or with the Ford Ultra Command Powershift or the Allis Chalmers Power Director. [3]

Notes and References

  1. http://www.tractordata.com/farm-tractors/000/0/6/64-john-deere-4020-transmission.html TractorData.com John Deere 4020 tractor transmission information
  2. http://salesmanual.deere.com/sales/salesmanual/en_NA/tractors/2012/feature/transmissions/6030_7030/6030_7030_powrquad_transmission_story.html Transmissions, PowrQuad™ 19-mph and 25-mph
  3. http://www.tractorbynet.com/forums/new-holland-owning-operating/50880-ford-8830-a-post575138.html#post575138 Ford 8830

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