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Unread 09-23-2013, 07:44 PM   #1
silver03cobra
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AX-15 install problems!!!!

So I have an 89 yj with a 4.2L backed up to a AX-15. Well the transmission went out, so I bought one from a 94 XJ... I switched over my internal slave set up and the back so I didn't have to clock the t-case. My problem now is I can't get the trans to bolt up.. feels like something is stopping it... thoughts???

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Unread 09-23-2013, 07:52 PM   #2
imstillatwork
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There are pilot bushing and input shaft diameter differences between those years I believe.
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Unread 09-23-2013, 07:54 PM   #3
Gage56
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Quote:
Originally Posted by imstillatwork View Post
There are pilot bushing and input shaft diameter differences between those years I believe.
Was thinking the same thing
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Unread 09-23-2013, 07:55 PM   #4
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Did you change the pilot bearing to a larger size? (from 0.590" ID to 0.750" ID)

Your 1989 AX-15's input shaft diameter is 0.590" diameter.
The 94 tranny's input shaft diameter is 0.750" diameter.
The 94 tranny's larger input shaft won't fit into the smaller original pilot bearing.

1989-1991's were 0.590"
1992 and up are 0.750"
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Unread 09-23-2013, 08:03 PM   #5
UltimatE
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Agreed with above, you need a pilot bushing now to fit the new transmission.
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Unread 09-23-2013, 08:04 PM   #6
jeep108
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Novak or advancedAdapters carry pilot bushings for this sort of thing. Shipping will be more than the bushing
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Unread 09-23-2013, 08:05 PM   #7
silver03cobra
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Oh OK... but is the O.D. the same????

89 is a 4.2
92 is a 4.0
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Unread 09-23-2013, 08:06 PM   #8
jeep108
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I don't believe it is
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Unread 09-23-2013, 08:12 PM   #9
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From the xj guys....http://www.jeepforum.com/forum/f11/a...ences-1170997/
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Unread 09-23-2013, 08:41 PM   #10
silver03cobra
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So 71 cj with 304and t-15 is the key...going to get one
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Unread 09-23-2013, 09:00 PM   #11
silver03cobra
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So will this work??? Using an external input shaft on a internal slave ?
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Unread 09-23-2013, 09:05 PM   #12
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Thats what i did. I have an '88 YJ with 4.2. My crappy stock tranny went out. So i got an AX15 out of a '97 XJ along with the TC. I clocked the TC, got a pilot bearing for a '74 CJ with the 304, got a slave/master cylinder (one piece) for a '94 YJ. All went in fine. I had a new clutch installed too. Make sure to use the right pilot bearing alignment tool.
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Unread 09-23-2013, 09:07 PM   #13
silver03cobra
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Quote:
Originally Posted by SamzJeep View Post
Thats what i did. I have an '88 YJ with 4.2. My crappy stock tranny went out. So i got an AX15 out of a '97 XJ along with the TC. I clocked the TC, got a pilot bearing for a '74 CJ with the 304, got a slave/master cylinder (one piece) for a '94 YJ. All went in fine. I had a new clutch installed too. Make sure to use the right pilot bearing alignment tool.
What???
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Unread 09-23-2013, 09:37 PM   #14
bigbossd1030
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Quote:
Originally Posted by silver03cobra
What???
he meant the clutch alignment tool. Never heard of a pilot bearing alignment tool before.
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Unread 09-23-2013, 09:58 PM   #15
silver03cobra
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Can't I do it with the clutch installed???



Good luck buying that bushing... nothing in AZ... bought it for 3.95+27.50 for 2 day shipping
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