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post #1 of (permalink) Old 09-13-2003, 11:12 AM Thread Starter
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transfer case

Three questions.
Will an 88-90 NP231 directly replace an 87 NP207 on a 5 speed tranny? Any other parts need to be changed? I know about the spline count on the input shaft.

Will the rear extension housing from an NP231 fit an NP207? My housing has a bad bushing and no one seems to sell the rear housing for the 207.
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post #2 of (permalink) Old 09-16-2003, 08:40 PM
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Re: transfer case

I replaced the NP207 with a 1987 NP231. I guess they made both in that year. I think that the 88 is the same spline count (21) as the 87. I did it to install the CV drive shaft kit.

If I had the choice I would change the transfer case and the transmission. The Pujoet (sp) stinks and if it breaks is almost impossible to get parts for.
post #3 of (permalink) Old 09-17-2003, 06:57 AM
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Re: transfer case

'87-89 should have NP-231s that will interchange with your NP-207. Possibly easier to find in XJs as these are more plentiful
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post #4 of (permalink) Old 09-17-2003, 08:09 AM
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Re: transfer case

what about the speedo sensor? earlier yjs had gear driven and later models had computerized. my buddy has one from a 95 he wants to put in his 87. are the tailhousings interchangeable?
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