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Thread: 1976 cj5 transfer case request

  1. #1
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    Default 1976 cj5 transfer case request

    I have a 1976 CJ 5. I ended up getting stuck in 4 Low and could not shift it. I dropped the transfer case and was able to shift it but it is very rough. I intend on doing a overhaul but I dont know what transfer case I have. The metal tag on the transfer case reads as follow.. Top numbers on the tag are 300596-113 and below that it reads 5354565. I think it is a Danna 20 but not for sure. Could someone please let me know so I order the right kit. It is a three speed. Thx

  2. #2
    Senior Member HillBillE's Avatar
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    Can you post a pic?

    Being a '76, it could be the D20 or the D300. They look similar, but are a bit different.

    Dana 20:



    Dana 300:


    You can see the differences in the main case (body) and in the shifters, More info here:http://www.google.com/imgres?imgurl=...26tbs%3Disch:1
    Last edited by HillBillE; 05-03-2010 at 18:02.


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    Administrator korisu56's Avatar
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    pic fail

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    Senior Member HillBillE's Avatar
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    Quote Originally Posted by korisu56 View Post
    pic fail
    Dang! I see that! The link should still work, eh? It has pics of all the different T-cases, and the 20 and 300 are next to each other.


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  5. #5
    Senior Member HillBillE's Avatar
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    Had time to do more digging

    If it's stock, it'll be the D20.

    The Dana 20 is found in 1962-1979 Jeep vehicles. It is also found in IH vehicles as well as a limited run of GM trucks in the early-mid 1970's. The Dana 20's design was outstanding and remains one of the strongest and most refined of all the popular transfer cases.
    The D300 started in the CJ line in 1980:

    The Dana 300 is found in 1980-1986 Jeep vehicles. It is one of the most respected transfer cases and is regarded as the gold standard by casual Jeepers up through the enthusiasts. While only provided in 1/4 Ton rated Jeeps, it strength surpasses this duty.


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  6. #6
    Senior Member HillBillE's Avatar
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    Ha! Pic fix!

    D20;


    D300;


    No 'hot linking' my butt!


    As long as the people remain armed,
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  7. #7
    Non-MVC Supporter Military Jeeper's Avatar
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    What was said before.........if it's stock is a D20. Here is a link to D20 information:

    http://www.jeepwiki.com/xfer/d20.html
    http://www.pirate4x4.com/tech/billav...-20/index.html
    NOTE: I DO NOT ENDORSE MOUNTAIN VALLEY CUSTOMS (MVC) FOR ANY 4x4 MODIFICATIONS - PM ME IF YOU HAVE QUESTIONS WHY!

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    I'm going to link up the Novak site with all of the info; http://www.novak-adapt.com/knowledge/model_20.htm
    I've heard that doing a twin-stick on the Dana 20 tc will help in shifting. Won't be as tough switching from two to 4wd when only swapping one stick. I personnaly said screw it, and swapped in a Dana 300 (better low ratio), but it was NOT a direct bolt-it.
    You can piece meal in gears from a Dana 18 (Ford gears) and gain a better low ratio (2.03 to 2.46) or go the Tera-low route, http://www.offroaders.com/directory/...ow-dana-20.htm for some good low gears.

    Later, T.J.

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    Senior Member jeepdreamer's Avatar
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    Default different but good...

    Both the Dana 2 and the 300 are good units. Think of the 300 as an upgrade for the 20. And though they are very, very similar...they are different? Your 20 would have a texas shaped mounting surface for the tranny where as the 300 uses the more common/standard round pattern used today.

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    I could be wrong but according to this site http://www.jeepfan.com/tech/jeeptech...es-factory.htm
    it's a Dana 20 based on the year model
    `89 YJ 33's 4" lift, High-lined front and rear "The Mistress"
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