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JT Scrambler (vs JK Wrangler) Frame and Axles

  1. RSF2K

    RSF2K New Member

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    Here is the new frame and axles that will be used for the JT wrangler pickup.

    Some measurements posted (from later in thread):

    Rear axle length:
    67.9" (vs JK's 65.375")

    Rear brake rotor size:
    13.74 in

    FRONT AXLE
    OD: 2.756"
    WALL THICKNESS: .285"

    REAR AXLE
    OD: 3.150"
    WALL THICKNESS: .236"


    (First image compares the JT frame with the JK Wrangler frame)

    2019-JT-Jeep-Scrambler-Pickup-Frame-Comparison-JKU-CAD.jpg 2019-JT-Jeep-Scrambler-Frame-CAD.jpg 2019-JT-Jeep-Scrambler-Axle-CAD.jpg 2019-Jeep-Scrambler-JT-Axle-CAD.jpg

    More axle and brake rotor images/dimensions:

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
     
  2. digitalbliss

    digitalbliss Well-Known Member

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    good ole Autocad and Inventor
     
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  3. Vegas_Sirk

    Vegas_Sirk Well-Known Member

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    Damn looks like the CAD files are out there.
     
  4. Ian cj10

    Ian cj10 Member

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    cool what is known about those 2 frame designs is 1 the 2 door & the other the 4 door or is it a jl frame & a jt frame
     
  5. digitalbliss

    digitalbliss Well-Known Member

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    Look at the tab name of the AutoCAD drawing at the top left of the first picture. It says "frame Line Skillet 2D compare to JK"
     
  6. Ian cj10

    Ian cj10 Member

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    ah thanks didnt think to look there not used to tech just a lowly earthmover
     
  7. digitalbliss

    digitalbliss Well-Known Member

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    Haha, I understand. I use the software every day so it's like second nature to me.
     
  8. The Great Grape Ape

    The Great Grape Ape Well-Known Member

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    Definitely the new 12-bolt Axle/Diff, too bad the file name doesn't help decode/guess the model name from Dana.

    I was hoping some filename with a Dxx combo or 2 digit combo in there would give a hint, but it seems like a generic number string that starts with FC... and containing AAW and random numbers. If it was AAM then that could've been American Axle, but it's not, and Dana is definitely the JL supplier.

    Dang, super curious about that Diff, especially since they haven't had a 12-bolt since the D28, and this refresh should add strengh over the D44 but not weigh as much as a D60.
     
  9. Asami

    Asami New Member

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    Can we make any educated guesses on the wheelbase, length and bed size based on this?
     
  10. MrDinkMan

    MrDinkMan Active Member

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    Looks like the JT frame is about 15-20% longer.
     
  11. peterjford

    peterjford Member

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    How high will the bed have to be to clear the coil suspension? Not that it really matters since I will probably lift it, but still curious.
     
  12. bilash31

    bilash31 Member

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    Ok. So thinking out loud here based on specific comments above. Correct me if you think I am wrong. File name is "2D vs JK." I don't work in the auto industry so standard abbreviations may be set. But does this mean there is confirmation of a 2 door JT? Thus far, as far as I know, it's only speculation since only a 4 door mule has been spotted. Wondering because 2D could be 2 door or 2 dimensional (plane view in drawing). Will JT have different frames for 2 and 4 door. Thoughts?
     
  13. JeepinOutfitters

    JeepinOutfitters Well-Known Member

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    Well there's definitive proof that there's a 'mystery' housing on the RH side of the axle housing. Are we going back to the days of an axle disconnect??

    The front axle is fitted with CV-jointed axle shafts, which someone in another thread had said was specific to the Selec-Trac full-time 4WD system, which itself was limited to the Sahara edition. Does this mean that the JT will have both a Sahara edition and the availability of Selec-Trac? Or will the JT always be equipped with the CV axle shafts?

    It also seems as if all we've seen so far for front axles is that mystery 12-bolt axle. Does this mean that all JLs and JTs will be equipped with the same front axle? No more D30 vs D44? (the axle in the CAD image appears to be missing the Rubicon locker fitting...)

    Another interesting note: the rear discs are vented, pointing to them being larger than the current JK's discs. Why though, does the far rotor appear larger than the near rotor?
     
  14. 2000wj287

    2000wj287 Member

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  15. 2000wj287

    2000wj287 Member

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  16. JeepinOutfitters

    JeepinOutfitters Well-Known Member

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    #16 Aug 23, 2017
    Last edited: Aug 23, 2017
    Ok seriously, is no one else noticing the axle disconnect housing??

    Those rear brakes are UUGE compared to the JK's. At 349mm that puts them larger than the "big rotor" upgrades for the JK, though just barely.

    I don't suppose we could get some housing measurements on the tube OD and wall thickness could we?? :)

    edit: Based on those CAD files, the JL/JT rear axle is a couple of inches wider than the JK's; 67.9" vs 65.375".
     
  17. 2000wj287

    2000wj287 Member

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    FRONT AXLE
    OD: 2.756"
    WALL THICKNESS: .285"

    REAR AXLE
    OD: 3.150"
    WALL THICKNESS: .236"
     
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  18. JeepinOutfitters

    JeepinOutfitters Well-Known Member

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    Could someone with access to the JT frame CAD file get measurement from center of front spring perches to center of rear spring perches?

    jt-frame.jpg
     
  19. 2000wj287

    2000wj287 Member

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    135.96536"
     
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  20. JeepinOutfitters

    JeepinOutfitters Well-Known Member

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    Rock on man, thanks! :like:

    edit: as a sanity check, could you get the same measurement on the JKU frame? :)
     
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