Transmission ID help

Discussion in 'Trucks [ Eighteen Wheelers ]' started by WMGUY, Oct 22, 2021.

  1. WMGUY

    WMGUY Road Train Member

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    I've heard on the radio a few times that there is an eaton fuller 13 speed with 13th being .86 and 12th being 1.00.

    Does this exist? If so does anyone know the model number?

    Thanks
     
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  3. beastr123

    beastr123 Road Train Member

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    any RTO or RTOF trans up to a 15813 also RTLO14613B
     
  4. Bean Jr.

    Bean Jr. Road Train Member

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    Yup, I've got an RTLO14613b. Short over and 12th is direct. I changed the rear-end ratio with the goal to run around 65 at 1600 in 12th. But it was just a little short. I thought I had 3.90 instead of 3.70. 65 in 12th is turning too much, and in 13th it's around 1400, which is borderline lugging. The solution? Go 70!
     
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  5. uncleal13

    uncleal13 Road Train Member

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    Looking at Eaton’s site they no longer make a single over 13. I think about 20 years ago was the last ones.
     
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  6. WMGUY

    WMGUY Road Train Member

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    I have a direct 10 speed now with 2.50 rears. It's great at 63-65 but I'd like a little longer legs at times.
     
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  7. WMGUY

    WMGUY Road Train Member

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    I've found several reman units available which just might fit the bill
     
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  8. WMGUY

    WMGUY Road Train Member

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    I appreciate the info
     
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