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Old style 13 speed shift knob for an 18 speed?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mile marker 27, Mar 10, 2023.

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  1. Mar 10, 2023 #1
    mile marker 27

    mile marker 27 Road Train Member

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    51D98B61-05E9-4827-8C96-EBF3078E5612.jpeg I’ve got 13 speeds in a couple of my trucks and I’ve put the old style shift knob, in both of them. Can an 18 speed be outfitted with this shift knob? There’s only 4 air ports in the 13 shift knob, would an 18 require a 5th to accommodate the low range splits?
     
    mile marker 27, Mar 10, 2023
    mile marker 27, Mar 10, 2023
    #1
    Diesel Dave Thanks this.
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  3. Mar 10, 2023 #2
    mslashbar

    mslashbar Medium Load Member

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    Just curious, did you have to switch the airlines around on your 13 to make it work?
     
    mslashbar, Mar 10, 2023
    mslashbar, Mar 10, 2023
    #2
  4. Mar 10, 2023 #3
    mile marker 27

    mile marker 27 Road Train Member

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    Yes sir. Got my info, from some guys on here.
     
    mile marker 27, Mar 10, 2023
    mile marker 27, Mar 10, 2023
    #3
  5. Mar 10, 2023 #4
    lester

    lester Midwest's #1 Feed Hauler

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    Yeah not gonna work on an 18
     
    lester, Mar 10, 2023
    lester, Mar 10, 2023
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    Bean Jr. and Last Call Thank this.
  7. Mar 10, 2023 #5
    mslashbar

    mslashbar Medium Load Member

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    Any chance I could get the info on what lines to switch from you.
     
    mslashbar, Mar 10, 2023
    mslashbar, Mar 10, 2023
    #5
  8. Mar 10, 2023 #6
    Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    This thread has me thinking……. thinking if I should do the switch also, from my 1979, shifter knob and marble steering wheel to my 2014. But at the same time, I don’t want to start taking parts from my 1979, it all complete and original and everything works.
     
    Diesel Dave, Mar 10, 2023
    Diesel Dave, Mar 10, 2023
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    Rideandrepair and Last Call Thank this.
  9. Mar 11, 2023 #7
    mile marker 27

    mile marker 27 Road Train Member

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    Ok, bear with me, it’s been a few years. Here’s some pic I found, that Smallpackage, helped me with. 419F837D-D859-440B-8818-32A9F827A7CC.png A014144F-3663-45A9-90D7-D46092109097.png 3F367583-11AB-40D1-836F-EE9C3CC7D3A6.png
     
    mile marker 27, Mar 11, 2023
    mile marker 27, Mar 11, 2023
    #7
    SmallPackage and mslashbar Thank this.
  10. Mar 11, 2023 #8
    mile marker 27

    mile marker 27 Road Train Member

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    A few more. 5BC2E1DA-E6E0-47BB-8CC2-6BD7F40BDB61.png 173E116A-1531-429B-9A79-FE70CB2934F3.png
     
    mile marker 27, Mar 11, 2023
    mile marker 27, Mar 11, 2023
    #8
    Jubal Early Times and mslashbar Thank this.
  11. Mar 11, 2023 #9
    Bean Jr.

    Bean Jr. Road Train Member

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    No, you could use the style I have, separate splitter and plunger for an 18, but how are you going to split the lo side with this one?
     
    Bean Jr., Mar 11, 2023
    Bean Jr., Mar 11, 2023
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    Hammer166 Thanks this.
  12. Mar 12, 2023 #10
    Hammer166

    Hammer166 Crusty Information Officer

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    Funny thing is, the old 9513's that came with the splitter and plunger? You could split the low side like an 18, as there were no interlocks. But most trucks were so short-geared back then, it was a pointless endeavor.
     
    Hammer166, Mar 12, 2023
    Hammer166, Mar 12, 2023
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    Jubal Early Times and Bean Jr. Thank this.
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