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name that transfer case

Discussion in 'Intermediate CJ-5/6/7/8' started by jeffs73, Sep 28, 2005.

  1. Sep 28, 2005
    jeffs73

    jeffs73 New Member

    central Jersey
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    jeffs73, Sep 28, 2005
    #1
  2. Sep 28, 2005
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
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    Sure looks like a 20. :)
    Since the shifter has been modified from the stock style, I'm not too surprised at the long throw.
    Pattern should be:
    4H
    2H
    N
    4L
     
    lynn, Sep 28, 2005
    #2
  3. Sep 28, 2005
    Grandpa Jeep

    Grandpa Jeep Member

    Peyton, CO
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    Oct 24, 2003
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    169
    Yes it's a Dana 20 and yes the shifter looks odd. Got a picture of the linkage?
     
    Grandpa Jeep, Sep 28, 2005
    #3
  4. Sep 28, 2005
    jeffs73

    jeffs73 New Member

    central Jersey
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    jeffs73, Sep 28, 2005
    #4
  5. Sep 28, 2005
    jeffs73

    jeffs73 New Member

    central Jersey
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    just went out and checked the shift pattern ,
    2h
    4h
    n
    4lo
    is this right for a 73 cj??
     
    jeffs73, Sep 28, 2005
    #5
  6. Sep 28, 2005
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
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    No. That's a D18 pattern. But the case you pictured is not a D18.

    How did you "check the pattern"?
     
    lynn, Sep 28, 2005
    #6
  7. Sep 28, 2005
    jeffs73

    jeffs73 New Member

    central Jersey
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    Sep 28, 2005
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    When the lever is all the way forward, the front driveshaft does not spin.I the locked the hubs and shifted it to the supposedly 4wd positions and it spun .
     
    jeffs73, Sep 28, 2005
    #7
  8. Sep 28, 2005
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
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    Here are accurate shift pattern decal reproductions, made for this forum by our friend Jerry Brown. Note the tcase patterns. Decals are available for viewing/purchase of different tcase/tranny combo patterns here:

    http://www.bearcreeksurvey.com/ForumOnly.htm



    D18 single stick pattern:

    [​IMG]

    Dana 20 single stick CJ pattern:

    [​IMG]
     
    lynn, Sep 28, 2005
    #8
  9. Sep 28, 2005
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
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    Here's a question for some of our other members:
    When you swap D18 internals into a D20 case with the EB bull gear to get the 2.46 low... do you end up with a D18 shift pattern in a 20 case??????
    If so, maybe that's what Jeff has...
     
    lynn, Sep 28, 2005
    #9
  10. Sep 28, 2005
    Grandpa Jeep

    Grandpa Jeep Member

    Peyton, CO
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    169
    No, that wouldn't do it, but the linkage is definately different from stock, and that could cause it. I'm a bit wary of how he determined the pattern by the way he described it.

    Jeff, try this. With the hubs unlocked, try the different positions and see if you can crawl underneath and spin the front DS with your hand. If it spins, it's in 2WD or N, if not, it's a 4WD position.

    Legal disclaimer. Set your parking brake or block your wheels before crawling under you Jeep.

    Edit: An even better way to tell is to lock your hubs and then try to take a tight turn. If it binds, it's in 4WD, if it doesn't, your in 2WD.
     
    Grandpa Jeep, Sep 28, 2005
    #10
  11. Sep 28, 2005
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    for comparison purposes, here's a pic of the stock factory set-up.
    looks like his lever has been modified, maybe more than that ?
     
    jpflat2a, Sep 28, 2005
    #11
  12. Sep 28, 2005
    Grandpa Jeep

    Grandpa Jeep Member

    Peyton, CO
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    Hmmm, now that I look at the diagram, it doesn't look like it's modified at all (I thought the shifter was supposed to be round). Looking at the rest of the pictures, it looks like he has a body lift. That's probably why the throw looks so long. I'll bet that when he double checks his pattern, he will find it's a standard d20 pattern.
     
    Grandpa Jeep, Sep 28, 2005
    #12
  13. Sep 28, 2005
    Grandpa Jeep

    Grandpa Jeep Member

    Peyton, CO
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    Also, is it just me, or is that a '76 or newer tub? I don't see the indentations that a pre '75 tub would have.
     
    Grandpa Jeep, Sep 28, 2005
    #13
  14. Sep 28, 2005
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    as I recall the shift levers were flat as pictured in both
    but the throw is different
    stock wasn't that much of an angle, almost striaght up and down
     
    jpflat2a, Sep 28, 2005
    #14
  15. Sep 28, 2005
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
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    Another way to check for 2WD/4WD for sure, using a floor jack with wheels, and the wheels facing the same direction as the Jeep wheels, lift the rear diff until the rear wheels are off the ground. With the front hubs locked in and careful use of the clutch, see which tcase shifter positions allow the Jeep to move forward with the front drive engaged.
    Obviously, another leagal disclaimer is appropriate here:
    Only moving an inch or so is enough to determine engagement/non-engagement. Make sure you use a light touch on the clutch, no need to even touch the gas. Make sure no one else is in the vicinity. Don't ruin your floor jack by driving for groceries this way.
    :D
     
    lynn, Sep 28, 2005
    #15
  16. Sep 28, 2005
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
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    I believe Jeff said in his intro post it's a 'glass tub, so no stock indents.
     
    lynn, Sep 28, 2005
    #16
  17. Sep 28, 2005
    Grandpa Jeep

    Grandpa Jeep Member

    Peyton, CO
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    Well, I don't know about the angle, but the body lift and (probably) later tub is exaggerating the throw. I mean the lever barely extends above the floorboard. If he had a stock knob on there it would be nearly in the carpet.
     
    Grandpa Jeep, Sep 28, 2005
    #17
  18. Sep 28, 2005
    Grandpa Jeep

    Grandpa Jeep Member

    Peyton, CO
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    That would certainly explain it. I wonder if the transmision tunnel is a bit higher than stock.
     
    Grandpa Jeep, Sep 28, 2005
    #18
  19. Sep 28, 2005
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    That's a stock '72-'79 CJ style model 20 shifter. I agree with GrandpaJeep. Looks like body lift/floor countours is why the shift looks like it has so much throw. I have seen where some people have modified the stock shift levers to change position of the lever for various reasons also. Hard to tell on that from the pic. Nickmil.
     
    nickmil, Sep 28, 2005
    #19
  20. Sep 28, 2005
    jeffs73

    jeffs73 New Member

    central Jersey
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    wow, thanks for all the info, after going back and checking it out, it is a traditional d-20 shift pattern.
     
    jeffs73, Sep 28, 2005
    #20
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