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Alignment Specs?

Discussion in 'Intermediate CJ-5/6/7/8' started by Ol Fogie, Feb 19, 2020.

  1. Feb 19, 2020
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb

    Jasper Georgia
    Joined:
    Nov 24, 2019
    Messages:
    172
    I searched the TSM and archives without success. :study: My question, anyone know if the tracking width of the dana 44 rear and the dana 30 front axles are the same? (on my factory axles 74 cj5) Thanks in advance
     
  2. Feb 20, 2020
    BadGoat

    BadGoat How High Can You Climb?

    St Croix, USVI
    Joined:
    Apr 27, 2017
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    200
    From an old Pirate 4x4 thread. There seems to be some confusion on if and when the late CJ5 used a wide track axle. CJ5 narrow track? - Pirate4x4.Com : 4x4 and Off-Road Forum

    "Early CJ5's were 48.44 and the Ramblers were 51.5. This is quite a bit of difference. While it is true he bolt can bolt it up. It would be 3" wider.
    I always thought the term "wide track" started in 76 when the rear frame was widened and the springs were moved outward. Therefore, not all CJ5's are narrow track.
    '41 to 45 Jeep MB: 48.25"
    '46 up CJ-2A, CJ-3A : 48.25"
    '49-65 Jeep Utility Wagon: 57"
    '49 Willys Jeepster 2WD 57"
    '52 up CJ-3B: 48.44"
    '52 M-38A 49.19" (Military width)
    '54-71 CJ-5 48.44" (so called early-
    '55-75 CJ-6 48.44" narrow axle)

    '47-65 Pickup (the classic) frnt-56" rr-63.5"
    '63-69 J-200, J-2000 65.5"
    '63-69 J-300, J-3800 65.75"
    '70- 72, Gladiator J-2000 frnt-63.5" rr-63.81"
    '70- 72, Gladiator J-4000 frnt-63.8" rr-64.38"
    '73 J-2500 frnt-63.5" rr-63.8"
    '73 all other J trucks frnt-63.9" rr-64.4"
    '74-75 J-10 frnt-62.9" rr-63.8"
    '76-87 J-10 frnt-63.3" rr-63.8"
    '74-75 J-20 frnt-62.9" rr-64.4"
    with disc brakes: frnt-63.0" rr-64.4"
    '76-84 J-20 frnt-64.9" rr-65.9"
    '63-72 Wagoneer 57"
    '73 Wagoneer frnt-57.3" rr-57.5"
    '74-75 Wagoneer frnt-59" rr-57.5"
    '74-75 Cherokee (full size) frnt-58.8' rr-57.5"
    '76-91 Wagoneer, '80+ Cher frnt-59.4" rr-57.8"
    '76-79 Cherokee (full size) frnt-59.2" rr-57.8"
    '76-78 Cherokee S frnt-59.5" rr-58.5"
    '76-80 Cherokee Chief 2 dr. frnt-65.4" rr-62.3"
    '81-83 Cherokee Chief 2 dr. frnt-65.3" rr-62.3"
    '67-71 Jeepster C-101 50"
    '72-73 Commando C-104 frnt-51.5" rr-50"
    '72-83 CJ-5, frnt-51.5" rr-50" (so called- narrow track
    '76-81CJ-7(some '81CJ8's) frnt-51.5" rr-50" narrow axle)
    '82-86 CJ-7 frnt-55.8" rr-55" (so called-
    '81-85 Scrambler, CJ-8 frnt-55.8" rr-55" wide axle )
    '84-87, 93 up Cherokee XJ 58"
    '88-92 Cherokee XJ 57"
    '86-92 Comanche, 57"
    '87 up Wrangler, YJ 58"
    '93 up Grand Cherokee, ZJ 58"

    On CJ's the front D30's were all "narrow track" until the 1982 model year.
    Starting in 1982 the CJ7's and CJ8's went to a "wide track" D30.
    narrow track D30 = 53"
    wide track D30 = 56"
    The CJ5's all stayed at 53" width."
     
    Last edited: Feb 20, 2020
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  3. Feb 20, 2020
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb

    Jasper Georgia
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  4. Feb 20, 2020
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb

    Jasper Georgia
    Joined:
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    172
    Wow that is a lot of info. Thank you very much for posting. This will help me in my alignment when I begin my YJ spring install and set up.
    Thanks
     
  5. Feb 21, 2020
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb

    Jasper Georgia
    Joined:
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    Ok guys I have a dumb question. Can someone please clarify the two different measurements in the highlighted post above. '' '72-83 CJ-5, frnt-51.5" rr-50" (so called- narrow track'' What does the frnt and the rr mean? Why the two seperate measurements? I know it must be simple, I just cannot see it right now. Thanks
     
  6. Feb 21, 2020
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
    Joined:
    Aug 13, 2015
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    Front and rear. The front is 1 1/2” wider than the rear.
     
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  7. Feb 21, 2020
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb

    Jasper Georgia
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    I
    I first though that also. however on down the page it states that ''The CJ5's all stayed at 53" width'' on all d-30 front axles. hummm what do you think? Jim
     
  8. Feb 21, 2020
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
    Joined:
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    I’ve come across that list a few times in my searches for different applications, and there are a few discrepancies/errors across the board.

    The D30 gained 1 1/2” over the D27 in ‘72, and as far as I know, they didn’t change through the whole run of CJ5s.

    I just measured the between the tire treads on my 3b to confirm (axles from a ‘74), and they are 1 1/2” wider in front.
     
    Last edited: Feb 21, 2020
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  9. Feb 21, 2020
    timgr

    timgr Jeepin' Nerd 2020 Sponsor 2019 Sponsor

    Medford Mass USA
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    This is in the 1974 TSM, page A-7. 51.5" front, 50.0" rear.

    The differences could be in the way "front/rear tread" and "track width" are defined.

    It is usual for the front track width of cars to be wider than the rear. This makes for better maneuverability and smaller turning circle. Some cars (J-trucks for example) are the exception. The J-truck and Utility Truck rear axles are wider than the front to allow a full 48" between the wheel houses in the bed.
     
    Last edited: Feb 21, 2020
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  10. Feb 21, 2020
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Do the listed measurements refer to mounting surfaces? I assume they do as that is the only logical way to have an accurate measurement.
     
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  11. Feb 21, 2020
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    Yes.
    It’s usually referred to by “WMS” = wheel mounting surface
     
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  12. Feb 21, 2020
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb

    Jasper Georgia
    Joined:
    Nov 24, 2019
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    Thanks youall, looks like the final tally is in at 1.5 in. wider on the front. I will need this info when I start my YJ spring conversion.
     

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