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th400 governer

Discussion in 'The Garage' started by bear76, Apr 10, 2007.

  1. bear76

    bear76 1/2 ton status

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    Where it located? I'm going to use a th400 from a diesel for a 250 I6 so I need to make some changes. Any other info on this would be great as well.
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

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    Round *sheetmetal* cover on the drivers side rear of the trans. Doesn't use a snap ring, it's either just press fit, or a metal clip over the top. You can pry the cover off with a screwdriver.
     
  3. bear76

    bear76 1/2 ton status

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    Well that seems easy.
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    Very easy. Pry off the cover, pull out the governor. :)
     
  5. bear76

    bear76 1/2 ton status

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    OK, where would I find a replacment governer to change from diesel to gas? I've been looking but have not found anything other than a rebiuld kit.
     
  6. dyeager535

    dyeager535 1 ton status Premium Member

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    Someone at some point made a governor kit, so you could tailor shifts. I don't even know if it was for the Th400 or not, but there wouldn't be a more likely candidate.

    I vaguely recall something online (buick GN site?) about how to do it yourself, it's really not that complex, but you've got weights and springs you are dealing with. I would assume the diesel has light weights, which cause it to shift sooner.
     

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