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Unread 03-22-2010, 07:18 PM   #1
patduke90
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Unique Dana 20

I've got an 81 scrambler. 304, t18, and a Dana 20 transfer case. I was told that the transfer case was either out of an old commando or a J-series truck since it has the J shift pattern. Is this correct? Also, is there a shift light for these? Does anybody know the correct shift pattern? I know the first position is 4wd hi, and I think the 2nd (which is over to the right) is 4wd low, but I'm not sure of the others. Any help would be appreciated...


Last edited by patduke90; 03-22-2010 at 08:32 PM..
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Unread 03-22-2010, 08:26 PM   #2
BriansCJ
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I know the shift pattern of my Dana 20 is
4HI
2HI
N
(2LO)
4LO
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Unread 03-22-2010, 08:33 PM   #3
patduke90
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Quote:
Originally Posted by BriansCJ View Post
I know the shift pattern of my Dana 20 is
4HI
2HI
N
(2LO)
4LO
This transfer case has a J-shift pattern, it isn't the typical straight up and down pattern of the Dana 20
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Unread 03-23-2010, 01:17 AM   #4
Trapshooter
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Your CJ8 would have come stock with a Dana 300 but it sounds like the T-case was changed out at some point. Every Jeep Dana 20 I've seen is 4H, 2h, N, 4L.

You may have an early Ford Bronco unit which did have a "J" pattern from 1973-1977 which was:
4L
N 2h
4h_l
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Unread 03-23-2010, 09:14 AM   #5
CSP
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The FSJ and early Commando Dana 20 have a U shaped pattern, not a J shape. That would be an early Bronco pattern with a drivers side front output.

The pattern is like this (the periods are there to get neutral in the right spot):

2H 4L
.|...|
.|...N
4H..|
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Unread 03-23-2010, 10:47 AM   #6
patduke90
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Quote:
Originally Posted by CSP View Post
The FSJ and early Commando Dana 20 have a U shaped pattern, not a J shape. That would be an early Bronco pattern with a drivers side front output.

The pattern is like this (the periods are there to get neutral in the right spot):

2H 4L
.|...|
.|...N
4H..|
That sounds like it might be right. When it's in 2H, it has a feeling like it is "out of gear" I can wiggle it around like it's not in anything. I just wish I could find a Shift knob for this thing that actually had the right pattern.
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Unread 03-23-2010, 01:52 PM   #7
PavementPounder
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Those things get sloppy and are annoying to fix. Scout D20's have Dana 300-style shift brackets if you want an alternative.

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Unread 03-23-2010, 03:20 PM   #8
CSP
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You can also use Dana 18 twin sticks on the Scout Dana 20.

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Unread 07-04-2010, 09:07 AM   #9
CJ7JeepChick
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omg

Quote:
Originally Posted by BriansCJ View Post
I know the shift pattern of my Dana 20 is
4HI
2HI
N
(2LO)
4LO
Holy crap. That explains a lot.
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Unread 07-04-2010, 09:36 AM   #10
243
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There are some knowledgeable people here, I had no clue there were so many shift patterns for the D20.
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Unread 07-04-2010, 10:44 AM   #11
JeepHammer
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Not much 'Unique', just a FSJ/truck linkage.
Not so easy to change in the vehicle, but worth your time.
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cj8 , commando , dana-20 , scrambler

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