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Unread 11-23-2014, 07:20 AM   #1
vgilbertson
Registered User
1992 YJ Wrangler 
 
Join Date: May 2014
Location: Suffolk, VA
Posts: 36
Engine and AW4 swap

Morning

I pulled the 4.0 auto out of the 92 YJ a week or so ago. Yesterday pulled the engine out of the donor, 95 xj.

Found where fan, ac and alternator mounts are different so swapping them from the original/

Pulled the wiring harness for the TCU.

Have a question on the transfer case, YJ front dif is vacuum controlled by the transfer case - do I need to install the manual kit? I don't see it referenced in any of the write ups.

Thanks

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Unread 11-23-2014, 09:57 AM   #2
Jeepsr4me
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Join Date: Dec 2004
Posts: 5,174
I would do the cable shifter for the front either way. I never liked having the lines and stuff hanging down there that could get pulled off during my mud runs...
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Unread 11-28-2014, 06:45 PM   #3
nagel
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1989 YJ Wrangler 
 
Join Date: Aug 2013
Location: West Milford, NJ
Posts: 115
When I swapped out my motor and trans from my 89 YJ, I put in a 96 4.0 from an XJ.

Had to clock the T-case (hangs low otherwise)

Since I chose to use the cherokee NP242, I lost the vacuum actuator. Posi-lock it, or pull the passenger axle shaft from the XJ and swap it (there's plenty of writeups about eliminating the 2 piece axle).
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Unread 11-28-2014, 07:32 PM   #4
Tshark299
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1987 YJ Wrangler 
 
Join Date: Mar 2004
Location: Upstate NY
Posts: 2,352
Quote:
Originally Posted by vgilbertson View Post
Have a question on the transfer case, YJ front dif is vacuum controlled by the transfer case - do I need to install the manual kit? I don't see it referenced in any of the write ups.
If you're using the XJ transfer case, and it's an NP231, you can keep your vacuum disconnect by trasnfering the vacuum switch over. When I did my 4.0 swap I used the '95 XJ NP231 in my '87 YJ with the vacuum disconnect still.
__________________
'87 YJ Laredo - 4.0L, AX-15, NP231, 4.10s: 3.5" BDS, 31" Muds

'95 XJ - Donated drive train to the YJ, Parted out the rest

'51 CJ-3A - Buick 225 V6: Painless Wiring Harness, Warn Overdrive & Hubs, 2" Lift, 31" Muds
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Unread 11-30-2014, 05:35 PM   #5
vgilbertson
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1992 YJ Wrangler 
 
Join Date: May 2014
Location: Suffolk, VA
Posts: 36
I am using a NP231 so will look at transferring the vacuum switch .

Thanks for the help
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