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Unread 11-17-2008, 04:31 PM   #1
JeepYJ187
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Transfer-case Leak

I have a small leak that seems to drip out the little red seal around the output shaft. i have bought the new seal but i dont see how to replace it, ohh btw i have a np231 xfer case.

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Unread 11-17-2008, 04:35 PM   #2
aaronc88
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output to rear drive shaft or Front drive shaft?
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Unread 11-17-2008, 04:40 PM   #3
JeepYJ187
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ohh its the output to the rear.
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Unread 11-17-2008, 05:02 PM   #4
Mean Max
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5 minute job.

1) Pull the driveshaft.
2) Pry the seal out with a seal puller, or a flat screwdriver.
3) Press in the new one. I usually use the old seal as a driver for the new one.
4) Enjoy your favorite adult beverage.

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Unread 11-18-2008, 01:55 PM   #5
JeepYJ187
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It looks like that knucle thing would be in the way or does the whole shaft come out of the transfer-case?
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Unread 11-18-2008, 01:57 PM   #6
NJHCx4xLIFE
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Not to hijack but I need to do the exact same thing on my dads yj... do I need to drain the fluid first or can the seal be replaced without drainign and refilling?
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Unread 11-18-2008, 02:00 PM   #7
aaronc88
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can be replaced without drainging completely.
u will lose some fluid but not all of it.
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Unread 11-18-2008, 02:02 PM   #8
aaronc88
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Originally Posted by JeepYJ187 View Post
It looks like that knucle thing would be in the way or does the whole shaft come out of the transfer-case?
u can work around it with a regular seal puller

if u realy want to undo thos 3 bolt and take off the tailcone housing than fix it outside of vehicle.
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Unread 11-18-2008, 04:33 PM   #9
Rock Dawg 97124
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I have a couple close up pics of what they are talking about. they are a little blury, It's a SYE kit; but I hope it helps..



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