5.3 into a Grand Cherokee - Harness Questions

[downtowncb]

Hi guys. I'm swapping a 5.3L into my '98 Grand Cherokee. Right now I'm trying to finish the harness and I've got a few questions.

These are all on the ECU connectors
1. Can the fan output control be added to ECUs from 2003 and up in the firmware
2. What are "Requested torque" & "Delivered torque" signals (Blue 13, Green 5) what do these do
3. Should I incorporate the 4wd lo indicator into my harness (Green 16), does this change shift points or something
4. What is "Crank voltage" on Green 59, what do I need to hook it up to, or should I remove it
5. What is "Damping lift/dive signal" on blue 38,
6. Does the computer receive the A/C request over serial from the BCM, my harness doesn't have a request wire. If so is there a way it can be added when I have the computer reprogrammed, I'm trying to make the new A/C compressor work with the existing A/C setup already in the vehicle.

Thanks.