I wanted to reply to this thread even though it is rather old. I searched and searched for info on how to do this swap and was not able to get any answers. So here is my solution to deal with installing a 1993 YJ 32rh into a 1997 TJ. I am not big on long writeups so ill keep it simple.
1. The transmission will bolt up.
2. You will need to use a 1993 torque converter. The 1993 32rh trans has a different input shaft and the 1997 TC did not fit.
3. The 1993 torque converter has a different bolt pattern. Three holes will bolt up to the 1997 flex plate but the fourth is about a quarter of an inch off. You will have to elongate the hole to fit the 1993 TC.
4. The torque converter lockup solenoid is a single wire solenoid in the 1993 YJ transmission. The solenoid will lock up when it sees 12v from ecu. The 1997 uses a two wire where the solenoid gets constant 12v from accessory and locks up when it sees ground. You will have to wire up a relay to send 12v to the 1993 solenoid in your trans when the 1997+ ecu closes ground. See the diagram below.
5. You will need to buy a spare 1997 solenoid to use as a dummy and just sit outside the transmission so that the ECU does not throw a check engine light. I guess it goes through a check to see if the solenoid is there and if it does not see it it will throw a code. I just mounted one with the relay. I am sure you can measure the resistance of the 1997 solenoid and then figure out how to trick the ecu with some kind of a resistor, but the dummy approach was easier for me to do. If someone smarter than me figures out the resistor route please let me know. Again, see the diagram.
Good luck.
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What about the sensor in the bell housing.