Well, I'm certainly no fuel injection/ computer expert, but no one is jumping on this one, so maybe this will start to help you.

I would make sure you drive the donor truck first, or at the very least, make sure it runs ok. Reason I say this is because once you get your Jeep running, you may have a problem, and you won't know if it came with the swap or if it is something you did wrong during the swap.

2nd: Make sure you get every little piece off of the donor, and make drawings, and mark each wire as to where it goes. Take exceptional care to do this, or you will be going nuts later, trying to remember where every piece fit in.

Essentially, it would be just as if you could lift every component intact from the donor and transplant it into the new car. Try to disturb as little as possible during the swap, so you don't have to play detective later on. Have a motor manual for both vehicles to reference.

We swapped a complete '91 Mustang drivetrain into my one Sons '88 Mustang, and for 3 weeks I was going to the library every night trying to figure out why the injectors wouldn't fire. Finally found out Ford made a major change in 1990, so we had to go to a junkyard and get every bit of wiring harness out of a '91, and turn the '88 into a '91. Even the horn and parking light circuits were screwing up our setup.

Some of the others, who are more modern and smarter than me on this forum, will probably have better info.

I've got a Jeep too, except with a 5.0 Mustang, but I took the cowards way out, and converted it to aluminum intake and Edelbrock carb. That is stuff I understand.

Don