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Unread 02-24-2010, 11:37 AM   #1
boyscout2207
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1997 jeep YJ

does anyone know what manuel 5 speed trasmission came in the 1995 jeep YJ with the 2.5 l 4 cyl engine? and if so could I swap that engine for a 4.2 L 258 AMC?


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Unread 02-24-2010, 11:42 AM   #2
Dado99TJ
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Do you mean 1987? A 1997 would be a TJ not a YJ and I'm pretty sure all 2.5's with a manual came with the AX-5. The AX-5 likely won't hold up behind a 4.2 or a 4.0
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Unread 02-24-2010, 11:44 AM   #3
95jy
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in 87 was it a ba-10
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Unread 02-24-2010, 11:49 AM   #4
timatoe
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Quote:
Originally Posted by 95jy View Post
in 87 was it a ba-10
Not behind the 4 banger, behind the 4.2 yes

Quote:
Originally Posted by YJ FAQ
Transmissions

Manual transmissions
AX-5 - Aisin 5-speed behind the I4 '87-'95
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Unread 02-24-2010, 11:49 AM   #5
boyscout2207
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i mment 1995 thanks though do you have any sugestions to a new tranny?
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Unread 02-24-2010, 11:54 AM   #6
95jy
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the ax-15 is a good swap, thanks timatoe for the correction
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Unread 02-24-2010, 11:55 AM   #7
boyscout2207
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what would be the recomended drivetrain for a 4.2 L in the 95 YJ? T-18? NV4500? transfercase?
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Unread 02-24-2010, 11:56 AM   #8
boyscout2207
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will the AX-15 swap into the existing transfercase?
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Unread 02-24-2010, 12:00 PM   #9
Dado99TJ
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I don't think so; I think the splines are different. I think most back up an AX-15 with a NP231J T-case.
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Unread 02-24-2010, 12:02 PM   #10
boyscout2207
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thanks alot for your help
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Unread 02-24-2010, 12:04 PM   #11
Dado99TJ
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Check this thread to find out your stock specs and look in the FAQ for write-ups on transmission swaps. Lots of good info in the FAQ.
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Unread 02-24-2010, 12:24 PM   #12
timatoe
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If you're gonna do an engine swap, get a 4.0 so you've got injection. Seems backward to me to go to the 4.2.
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Unread 02-24-2010, 12:29 PM   #13
Leans93
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95' 2.5L to 4.2L swap would be a headache. Swapping to a 4.0L is a better engine and a much easier swap. Check out the link in my sig for info on the 2.5 - 4.0 swap.
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