5 speed swap Q?

Aside from the tranny, center console, pedal assembly, flywheel, master / slave & hoses, etc to make the Nv3550 go down the road: what do I need to do / change electronically to go from Aw4 to 5-speed?

Alternately... has anyone tried to use the WJ's 5 speed automatic in an XJ?

ECU to stop getting codes and do you mean KJ (Liberty) it might have a different bellhousing pattern. Dont know if 3.7 and 4.0 are the same. I would think not.The NV3550 will bolt to an AX 15 bellhousing. Now the AX-15 in various vehicles as Jeep or Dodge truck-Dakota is the same or very close. Still use the AX 15 Jeep bellhousing.
http://www.jeeps-offroad.com/showthread.php?t=4740
This is more to confuse you.

Ron