Swapping 98 6 cyl and AW-4 into 91 Comanche - Trans Sensor Issue

I am swapping a 4.0 and AW-4 into my Comanche to replace the tired ones in it. Mostly done at this point. The rear most sensor on the trans is different on the 98. Do I need to swap the tail piece to mount the older sensor? Thanks!

You need to pull the tailcone adapter and swap the rotor over from the old one. If you search there is a nice writeup with pictures hiding somewhere around here.