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IHC trans

Discussion in 'Heavy Equipment' started by Jay brown, Sep 4, 2007.

  1. Jay brown

    Jay brown PlowSite.com Addict
    Messages: 1,783

    I have a 1989 IHC 1600 with a 7.3 navistar and a 5 speed trans behind it. the truck will only run out at 40 MPH. anyone know if a 9, or 10 speed will fit this turck? thanks, jay
  2. clark lawn

    clark lawn PlowSite.com Addict
    from NE ohio
    Messages: 1,233

    what is your rear end ratio? that is what uasually limits your speed. i have driven that same truck and it would go 65-70. I believe that you can also limit the speed through the computer on those you mayhave to go to a dealer and get the speed checked.