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Unread 09-10-2008, 07:34 AM   #1
01xjltd
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Transfer case interchangeability, What years fit 2001

I have a 2001 xj that needs a NP 231 transfer case due to vibration issues.Need to know what years will work with the 01 and what diffent makes and models will fit {wrangler Liberty}.

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Unread 09-10-2008, 10:08 AM   #2
CJ7-Tim
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1997-2001 XJ Cherokee will bolt on. Other NP231's from the Wrangler will physically fit but may need some parts transfered from your old T-case to function properly.

Try www.car-part.com , NP231's are very easy to find.
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Unread 09-10-2008, 10:53 AM   #3
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Have you considered a rebuild kit?

They cost around $90 and come with all the bearings and seals.
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Unread 09-10-2008, 01:26 PM   #4
Jason, aka: Jeepin.com
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1996-2001 XJ Cherokee would be a direct swap. Anything older than that and you'll need to change the yoke on the driveshaft. Make sure you match up the input spline count -- easiest way is to just make sure the donor vehicle used the same trans (ie: auto or manual) as yours.

TJ transfer cases will work as well, but may have different spline counts and they are clocked differently than an XJ t'case. I'm not sure if the difference in clocking is due to the bolt pattern on the t'case or on the transmission though.

I'm curious about what kind of vibration issue is necessitating replacing the transfer case though?
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Unread 09-10-2008, 05:06 PM   #5
durango-bob
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The different clocking is due to the trans, so any TJ case is a direct replacement.
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