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Unread 08-28-2013, 06:54 PM   #1
codyyj93
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1993 YJ Wrangler 
 
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Yj tcase and axles

I'm doing a dana 60 rear axle and dana 44 front axle both out of a ford. Let's say I'm going to run a 4.10 or 4.56 gear ratio. Do I need to do anything with my np231 tcase or transmission besides new shafts and sye???

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Unread 08-28-2013, 08:00 PM   #2
Joe Dillard
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You may want to cap-off the vacuum disco stuff coming from the tcase since you won't be using it anymore. You may want to swap in a different speedometer gear to help offset the different ratio & tire size you are going for.
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Unread 08-28-2013, 08:22 PM   #3
codyyj93
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Quote:
Originally Posted by Joe Dillard
You may want to cap-off the vacuum disco stuff coming from the tcase since you won't be using it anymore. You may want to swap in a different speedometer gear to help offset the different ratio & tire size you are going for.
Awesome I have heard about the vacuum capping but the speedometer gear just adjusts so you can see how fast your going or am I way off?
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Unread 08-28-2013, 09:55 PM   #4
Anticanman
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You'll have to purhase a new speedometer gear or just use Kentucky windage based on a GPS reading. As for the vacuum capping, here's a little reading.

http://www.jeepforum.com/forum/f12/t...80/?highlight=

Hope you don't mind that I moved your thread, I thought it would get more hits here.
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Unread 08-28-2013, 10:09 PM   #5
codyyj93
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1993 YJ Wrangler 
 
Join Date: Jun 2013
Location: Mesa, Arizona
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Quote:
Originally Posted by Anticanman
You'll have to purhase a new speedometer gear or just use Kentucky windage based on a GPS reading. As for the vacuum capping, here's a little reading.

http://www.jeepforum.com/forum/f12/t...80/?highlight=

Hope you don't mind that I moved your thread, I thought it would get more hits here.
No problem thank you!
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