99 aw4 in 88 xj swap ?

I have searched and can't find what i am looking for. I would like to know what I need to swap a 99 trans in to a 88 xj. I know to swap out sensor rotor. but what about wiring?

if your going from old aw4 to newer aw4, the speed censer needs to be swapped, the wiring should be the same, This helped me.
http://www.naxja.org/forum/showpost.php?p=243739279

Yup, you have to swap the output speed sensor and rotor.

The wiring harness for the solenoids and sensors was a little different too. As I recall all the wiring was similar colors and in the same places on the connector, but the connector was different. Two routes you can go. If you're dropping the pan: you can unhook the solenoid wires, unscrew the bolt where the wiring harness comes out of the tranny, pull the wiring out, and reuse your old wiring harness. Or you can cut the wires after they come out of the tranny and splice on your old harness. As I said, I think the wire colors were almost identical, like black with violet stripe versus white with violet stripe.

NSS will be different too. You'll have to swap your old one over. Sell the new one on eBay for $40.

is it 4x4?

wont there be a spline count issue with the transfercase? 88 uses a 21 spline and the 99 uses a 23. also the length of the transfercase mainshaft may be different. short verses long.

I got both the trans & t-case. thanks for your help guys