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AX-15 swap - shaft question

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Old 05-31-2009, 02:28 AM
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Default AX-15 swap - shaft question
I got the AX-15 and the output shaft measures 1 3/16" from the ring that holds the seal. Can anyone tell me what input shaft length i need for my NP231 t-case?
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Old 05-31-2009, 09:15 PM
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c'mon someone has to know!
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Old 05-31-2009, 09:23 PM
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Originally Posted by lil'whiteXJ
c'mon someone has to know!
it depends on the year
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Old 05-31-2009, 09:30 PM
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Originally Posted by lil'whiteXJ
I got the AX-15 and the output shaft measures 1 3/16" from the ring that holds the seal. Can anyone tell me what input shaft length i need for my NP231 t-case?

looks like the ax15 is a 23 spline count them to verify
and your 89? 231 TC is a 21 spline
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Old 05-31-2009, 09:33 PM
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Originally Posted by lil'whiteXJ
I got the AX-15 and the output shaft measures 1 3/16" from the ring that holds the seal. Can anyone tell me what input shaft length i need for my NP231 t-case?


1 3/16 so that would be the short shaft at 1.2
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Old 05-31-2009, 10:19 PM
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Originally Posted by mike37
looks like the ax15 is a 23 spline count them to verify
and your 89? 231 TC is a 21 spline
You will need to get another input gear or another tcase with the right gear. Advance Adapters has the gear for $190
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Old 05-31-2009, 11:08 PM
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I guess I wasn't clear. I understand the spline counts, and I know I need a new shaft. What I don't know is what year my transmission is out of. Therefore I need to know what input shaft for the 231 will mate to the transmission. Novak Conversions says there is three lengths. I'm trying to do this on the cheap, and I could get a transfer case for less than $200, if I can find out what shaft length I need.

Thanks,
Billy
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Old 06-01-2009, 01:17 AM
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Originally Posted by lil'whiteXJ
I guess I wasn't clear. I understand the spline counts, and I know I need a new shaft. What I don't know is what year my transmission is out of. Therefore I need to know what input shaft for the 231 will mate to the transmission. Novak Conversions says there is three lengths. I'm trying to do this on the cheap, and I could get a transfer case for less than $200, if I can find out what shaft length I need.

Thanks,
Billy
like I posted before you have a short shaft ax15 you need the short shaft tc with 32 spline 90 to 95 with ax15 trany
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Old 06-01-2009, 01:27 AM
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what year is thetrany from
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Old 06-01-2009, 01:29 AM
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Sweet thanks for the help man.

Billy
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