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Unread 10-26-2001, 08:36 PM   #1
evilpsych
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Join Date: Oct 2001
Location: Mt. Sterling, KY
Posts: 1,045
Best YJ tranny?

ok guys.. Which would you pick if you had to replace the tranny on your yj.. the AX-5 or the AX-15.. what's the diff between the two? i've got the 4.0 liter and i think it's the NP231 xfer case.. stock configuration too..

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Unread 10-27-2001, 01:20 PM   #2
I-4
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Join Date: Jul 2001
Location: deep in the heart of texas
Posts: 286
an ax-5 is a light duty tranny.(good for 4 bangers)the ax-15 is a medium duty tranny.other than a slightly different 1st gear,just strength is the only issue.if there were an easy way to put an ax-15 behind my four cylinder i would.
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Unread 10-28-2001, 07:41 PM   #3
Nightclaw
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1994 YJ Wrangler 
 
Join Date: Jul 2001
Location: Oceanside, CA, USA
Posts: 150
The AX-15 was the standard transmission for 4.0L Wranglers from 1990-1998. The AX-5 was standard on 2.5L models and has a smaller input shaft. '99-present Wranglers come with the New Venture NV-3550, which I have been told is stronger than both the AX-5 and AX-15. The Cadillac trannies for YJ's are of course the NV-4500 and NV-5600, but then you're talking some serious $$$. Oh, but to have an NV-5600... (Mmmmmm - 6-speed w/ granny low 1st. droooolllll....)
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[b]'94 YJ Sahara Hardtop[/b]
4.0L / AX-15 / Stock NP231 / Stock D30 (open) / D60 (35-spline, Detroit locker, Moser axles) / rear disc brakes / 4.56 gears / Advanced Adapters SYE & CV Shaft / 33" BFG MT-KM's / Thorley Header / Magnaflow Muffler / BesTop Flares
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