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-   -   2.5 to 4.0 (http://www.wranglerforum.com/f218/2-5-to-4-0-a-156272.html)

fatcrack13 04-26-2012 01:30 PM

2.5 to 4.0
 
I have a 1992 Jeep Wrangler I have put a extreme amount of time and money into it to just sell and put all my parts on a 4.0. So I was wondering if it would be possible to buy a fully running working 1992 Jeep Cherokee and use that as a donor vehicle. For engine, transmission, transfer case, wire harness, and the computer. Other than labor is there anything else that i would need to get or am missing?

Xpress 04-26-2012 02:52 PM

People do it all the time, donor cherokees are very popular. You need good welding skills, a lot of time and effort, another vehicle to drive around, and a couple of buddies to help.

P0234 04-26-2012 03:50 PM

As much time as you have invested, its hard to imagine it being more than a full drivetrain swap. There are so many little things that kill you time and expense wise on any sort of swap. Its a labor of love for sure.

2fastc 04-26-2012 11:18 PM

front and rear drive shafts. Just did the same thing to my 92 got a 94 Cherokee 4.0 H.O. donor moved the frame mounts and re clocked the transfer case put her in, wasn't bad to do took a weekend to pull both out and install the 4.0.

fatcrack13 05-04-2012 09:58 AM

Okay thanks for the info but is is there anything to technically with the wiring harness from the 4.0 and new computer mounted onto my 92 yj 4 banger

Xpress 05-04-2012 10:40 AM

From what I have read and researched:

-Install 4.0 computer
-Wire up additional 2 injectors
-Extend some wiring

And that's basically it, this is of course only for MPFI 2.5L Jeep, which you should have.

Ibuildembig 05-04-2012 10:47 AM

You also need a tach out of a 4.0 jeep


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