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Old 02-26-2009, 08:13 PM
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upgrading from 4 cyl. engine

im looking to put a new engine and transmission in my 94 wrangler yj and am not sure about whether to put in another 4 cyl engine or to upgrade to a v6 or even a v8.

some people tell me that if i go larger than a 4 cyl engine i would have to put in a ax-15 tranny instead of an ax-5.is this true?

any one have any good links for cheaper engines and tranny's online?

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Old 02-26-2009, 08:19 PM   #2
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If you go with the 4.0 you would need the ax15 the ax5 really wont hold up to the 6 or much less the 8cyl, i blew my 2.5 up tonight i think im goin to the 4.0 and ax15

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Old 03-06-2009, 04:20 PM   #3
 
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what does the ax15 come in? i'm buying a 95 cherokee with a 4.0 high output with a manual 5 speed to swap into my 4 banger. would that trans be a ax15? i'm new to the jeep scene so i figured i'd ask. thanks
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Old 03-06-2009, 04:54 PM   #4
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Originally Posted by jeepster213 View Post
what does the ax15 come in? i'm buying a 95 cherokee with a 4.0 high output with a manual 5 speed to swap into my 4 banger. would that trans be a ax15? i'm new to the jeep scene so i figured i'd ask. thanks
should be, as I under stand the only real difference between this setup in an XJ vs wrangler would be the T-case clocking
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Old 03-06-2009, 05:27 PM   #5
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yep, that cherokee will be a good donor.
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Old 03-08-2009, 03:02 PM   #6
 
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should be, as I under stand the only real difference between this setup in an XJ vs wrangler would be the T-case clocking
what do you mean by t-case clocking? is it a differnent drop on the t-case or just how the t-case mates to the trans? also would i be able to cut the cherokee mounts off the frame and use those in the wrangler or would i have to find or buy the 6 cylinder wrangler frame mounts?
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Old 03-17-2009, 09:49 AM   #7
 
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any answer to my last question? i am about to get into the swap so i'm trying to get all my chickens in a row to make it as smooth as possible. if the clocking is different then would i be able to just use the t-case that is currently in my 4 banger wranlger?
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Old 03-17-2009, 04:26 PM   #8
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Clocking depends on the bolt patterns on the trans and transfer case. In your case, what you could do is order a clocking ring off e-bay for around $70. This is a 3/8" steel ring with several threaded holes in it so you can turn the transfer case up or down. You cannot use the Tcase from the 4banger cause it only has a 21 spline input and the ax15 has a 23. IMO you should get the whole drive train situated in the rig and then see if you need to clock the Tcase or not.

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