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Unread 09-24-2009, 01:45 PM   #1
Inavacuum
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swapping input shafts

Hey guys,

doing the 231 swap soon. The only thing I'm really worried about is swapping the input shafts. I'm planning on probably having to do that and I've read plenty of write ups but I've never seen anyone actually document swapping the inputs. If anybody could point me in the right direction, that would be awesome. I was told the gear cuts are the same. The donor is a 96 xj the Zj is a 95.

help?

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Unread 09-24-2009, 04:22 PM   #2
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yes, gear pitch should be the same. you can just swap out the entire input shaft and sun gear and not even hassle with that part. once you get the t-case apart and remove all the snap rings it will all just slide apart. when i tackled mine i had nothing to go off of, i just started removing stuff and everything was self explanitory.
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Unread 09-24-2009, 06:12 PM   #3
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Quote:
Originally Posted by sandman View Post
yes, gear pitch should be the same. you can just swap out the entire input shaft and sun gear and not even hassle with that part. once you get the t-case apart and remove all the snap rings it will all just slide apart. when i tackled mine i had nothing to go off of, i just started removing stuff and everything was self explanitory.
Sun gear?

9 10
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Unread 09-24-2009, 06:24 PM   #4
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the sun gear is what the input shaft mates up to.



the part on the far right next to the chain is the sun gear, you can see the input shaft sticking out of it. you can just swap over that whole unit, instead of splitting it to retriev the input shaft.
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Unread 09-24-2009, 06:33 PM   #5
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Ahhh, that main shaft looks a bit mangled.
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Unread 09-24-2009, 06:35 PM   #6
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Quote:
Originally Posted by sandman View Post
the sun gear is what the input shaft mates up to.



the part on the far right next to the chain is the sun gear, you can see the input shaft sticking out of it. you can just swap over that whole unit, instead of splitting it to retriev the input shaft.
when i split open the tcase, what will I need to remove to get to that?
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Unread 09-24-2009, 06:37 PM   #7
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Quote:
Originally Posted by Inavacuum View Post
when i split open the tcase, what will I need to remove to get to that?
Everything ... it's basically the last part.
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Unread 09-24-2009, 06:58 PM   #8
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Quote:
Originally Posted by Virmagicus View Post
Ahhh, that main shaft looks a bit mangled.

lol....the shaft was in good shape, what your seeing is white paint, dont ask me, it just had white paint on it for some reason.
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Unread 09-24-2009, 07:52 PM   #9
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Here ya go ...... http://www.jeepforum.com/forum/f13/2...d-pics-239528/

and another , http://www.jeepsrus.org/index.asp?p=...NP231TCaseSwap
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Unread 09-25-2009, 09:07 AM   #10
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thanks guys.

why is the 242 swap so much more popular than the 231? From what I know, the 242 is weaker and doesn't have any aftermarket support like the 231 does.
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Unread 09-25-2009, 09:19 AM   #11
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Probably due to the 4at option.
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Unread 09-25-2009, 12:15 PM   #12
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Quote:
Originally Posted by Inavacuum View Post
thanks guys.

why is the 242 swap so much more popular than the 231? From what I know, the 242 is weaker and doesn't have any aftermarket support like the 231 does.
The 4 wd full time option is what made me go with it. Even though the 242 is weaker than a 231 it will last forever with no problems for what most of us will be putting it thru. Ive only heard of 2 242's grenading .... and with those two people a 231 wouldnt have held up either with what they were doing.
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