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Just a few comments from my 97 swap:
The difference in motor mount location is about 5.5" farther forward, if you use the existing center pan as the point to start your locating. Doing so causes about a 1.5" too long rear drive shaft when using a NV3550 on std mount. I believe the AX-15 is the same. I soft bolted everything together from T/C forward to locate the motor mounts.

If you replace the input shaft on the T/C, you may have a howler.....I did. I also had an alignment problem with the linkage and went to the Novak cable shifter....best decision made in this swap.

The front drive shaft was okay on mine, but I have a HP D30. I also have zero lift over stock.

As was stated before, all you need to replace is the engine wiring harness and PCM. Plug and play as it's said.

You may experience a nose down attitude from the extra weight up front. I did, and went to 6 cyl front springs. No further issues.

Even most of the exhaust system is the same...easy deal.

Holler if you have any questions
one question for you, will I have to move my steering shaft bracket??
 

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Yes, the steering support bracket also moves for clearance issues. You can use your donor for location.

Regarding motor mounts, the 4.0 mounts are two pieces each side, basically a stiffening liner inside the outer shell. I cut mine off a donor frame, I actually cut into the frame, cleaned and dressed them well and rewelded them into place. I did not have a plasma cutter but wished I did. I understand new mounts can be bought from a couple sources including the Jeep dealer. I used what I had with no issues.
 

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Yes, the steering support bracket also moves for clearance issues. You can use your donor for location.

Regarding motor mounts, the 4.0 mounts are two pieces each side, basically a stiffening liner inside the outer shell. I cut mine off a donor frame, I actually cut into the frame, cleaned and dressed them well and rewelded them into place. I did not have a plasma cutter but wished I did. I understand new mounts can be bought from a couple sources including the Jeep dealer. I used what I had with no issues.
did you also use a grinder? or how did you cut it? thanks im really excited to get this motor in, I have a 4 day weekend from work so I plan to have it all put in and hopefully running this weekend!
 

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Discussion Starter · #164 ·
did you also use a grinder? or how did you cut it? thanks im really excited to get this motor in, I have a 4 day weekend from work so I plan to have it all put in and hopefully running this weekend!
I just trimmed old 4cyl mounts (didn't even clean them from frame), I purchashed 6cyl mounts from dealer. Part numbers are on page 2
 

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Got my motor mounts cut off the old frame..

Anyone know if I will need to change my ignition since my jeep was an auto it doesn't have the "key lock" behind the key hole? Don't know if that will make a difference or not???
 

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Does anyone know where to get the stock 6 cy motor mounts now. I am in the middle of a swap and found out the parts are discontinued. I find them on multiple websites but after calling they state they do not have them in stock and they would just order from the dealer anyways. Thanks for the help.
 

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Does anyone know where to get the stock 6 cy motor mounts now. I am in the middle of a swap and found out the parts are discontinued. I find them on multiple websites but after calling they state they do not have them in stock and they would just order from the dealer anyways. Thanks for the help.
I'm having the same problem. Gonna see if my local dealer can get them.
 

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Hello
not easy do understand when you speak english a little..i just bought a yj 1992 with 2,5L engine and AX5.I want to swap with a 4L for a xj 1990 and the AX15 from diesel XJ .for the 4L XJ i bought a complet xj.Do you think is that possible to install the 1990 4L from XJ to my 1992 yj?
Sorry for my english
 
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