The important part is the pressure plate. Get one for an XT6. You'll also need to get a throwout bearing for an '85 Nissan 720 pickup to run that PP with an EA81 4spd.
The stock EA81 clutch plate is more than adequate when paired with an XT6 pressure plate.
Do I need to have the EA81 flywheel modified to XT6 specs or can I just have them turn it down for a fresh surface?
Numbchux- CONGRATs on getting it running@!!!! gEt the clutch replaced and do some front wheel burnouts.