9speed to 18speed

Discussion in 'Ask An Owner Operator' started by 1nicevette, Dec 3, 2021.

  1. 1nicevette

    1nicevette Medium Load Member

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    Hey guys what parts by chance do I need to do the swap can’t much on the interweb?
     
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  3. xsetra

    xsetra Road Train Member

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    You need to post your make and model to get quality answers.
    Good luck.
     
  4. AModelCat

    AModelCat Road Train Member

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    A more accurate answer will require your transmission model number but here's a vague idea of what might be required:

    At a minimum you'd probably need to replace the auxillary section, part of the air system on the transmission and the shift knob.

    End of the day probably easier to just swap out the whole transmission.
     
    ProfessionalNoticer Thanks this.
  5. Arctic_fox

    Arctic_fox Heavy Load Member

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    It is. I got a quote on swaping my 13 to an 18 and its actully about $800 cheaper to just pull the 13 and plonk in a brand new 18 and about $2200 if i plonk in a referb
     
  6. 1nicevette

    1nicevette Medium Load Member

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    Dec 22, 2016
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    Copy that I just got the quote to just swap out the hole trans. Thank you guys
     
  7. abyliks

    abyliks Road Train Member

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    Depends on what model 9 speed it is, or if it is even a 9 speed and not a 13 speed someone pulled the splitter off or so they didn’t have FNGs crunching the back box
     
  8. Oxbow

    Oxbow Road Train Member

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    Depending on which 9 speed you had and which 18 speed you are going to the driveshaft may have to be shortened or lengthened as well.
     
  9. 1nicevette

    1nicevette Medium Load Member

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    Going to an Eaton 18 speed new drive shafts clutch and rebuilt rear ends my trans is shot and the rears have a million on them. I had the motor pulled two years ago and completely rebuilt so now it is time to do the rest. Have owned the truck for 11 years now and don’t plan on getting rid of it.
     
    Oxbow Thanks this.
  10. goga

    goga Light Load Member

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    Good luck with that.
     
  11. abyliks

    abyliks Road Train Member

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    Just go with new instead of reman, no cores to worry about and and rebuilding the drive shaft isn’t the end of the world
     
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