T90 to dana 20 Help! - JeepForum.com

 
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post #1 of 9 Old 06-10-2013, 11:41 PM Thread Starter
oneIwilly
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1952 M-38 
 
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T90 to dana 20 Help!

Im trying to hook up a T90 from a 1949 willys up to a dana 20 from a cj5. I have been told by a buddy that all I need is a T86 bearing retainer and clip. Then I see this kit from novak that makes it seem more complicated. Do I need to make sure that I get the bull gear that went to the t case originally or will the bull gear from the previous 18 be compatible. Please will somebody tell me exactly what I need to get?

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post #2 of 9 Old 06-11-2013, 12:00 AM
rd94yj
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Interesting. I am also wondering the same thing. The jeep t90 had three different versions but they were all married to a small bore spicer 18. So you need to marry it to a larger bore case?
Why not just get the Novak bearing? It's only 64 bucks. You'll probably spend more time trying to chase down the t86 parts and I imagine you would spend the same amount of money either way.

94 YJ 60/14 bolt 4.0 ax15 Dana 300
88 YJ 60/14 bolt AMC 360 nv4500 np241
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post #3 of 9 Old 06-11-2013, 12:08 AM Thread Starter
oneIwilly
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probably would have

Probably would have. I have had great luck with novak adapters. So you think buy the novak bearing and get the bull gear with the case and ill be golden?
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post #4 of 9 Old 06-11-2013, 12:10 AM
rd94yj
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I am not 100 percent on the bull gear. But wouldnt you just need a bull gear to fit the t90 output shaft?

94 YJ 60/14 bolt 4.0 ax15 Dana 300
88 YJ 60/14 bolt AMC 360 nv4500 np241
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post #5 of 9 Old 06-11-2013, 12:10 AM
rd94yj
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I have a bull gear from both cases. Let me go look at them

94 YJ 60/14 bolt 4.0 ax15 Dana 300
88 YJ 60/14 bolt AMC 360 nv4500 np241
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post #6 of 9 Old 06-11-2013, 12:45 AM
rd94yj
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Okay so after doing some research you should need a 26 tooth, 6 spline bull gear. My spicer 18 has a 1 1/8 intermediate shaft I think and the bull gear is a 26 tooth, 6 spline. The Dana 20 I have is a 26 spline, 6 spline bull gear as well. They both fit my t18 output shaft just fine. They do look a little different in the picture but they fit the shaft the same. So I THINK you need a 26 tooth, 6 spline bull gear. Novak has a gear interchange on their website. The gear on the left is from a 1 1/8th intermediate shaft spicer 18 and the gear on the right is from a Dana 20. I had an issue uploading the image. Hope it comes out okay.
Novak link: http://www.novak-adapt.com/knowledge...gears_grid.htm
Attached Thumbnails
image-1808587653.jpg  

94 YJ 60/14 bolt 4.0 ax15 Dana 300
88 YJ 60/14 bolt AMC 360 nv4500 np241
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post #7 of 9 Old 06-11-2013, 10:49 PM Thread Starter
oneIwilly
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Thanks fellas.

Hey thanks. Its nice to ask a question in a forum and not get lit up! Parts are in the mail. Wish me luck.

Last edited by oneIwilly; 06-11-2013 at 10:50 PM. Reason: bad info
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post #8 of 9 Old 06-12-2013, 05:36 AM
rd94yj
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Yea man no problems! Good luck!

94 YJ 60/14 bolt 4.0 ax15 Dana 300
88 YJ 60/14 bolt AMC 360 nv4500 np241
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post #9 of 9 Old 03-27-2014, 04:51 PM
Kman1983
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I realize the last post was over 9 months ago. What parts did you have to use to bolt the Dana 20 to your T90?

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