You might have a whole bunch of connection issues if you change engines. I haven't looked, so I don't know. See if there are any threads about swapping engines other than V-8s. There might be something there.

If you go with a rebuilt engine, whatever you need you can take off the old engine. I did that with the junk yard engine I have in my truck now.

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Sgtsandman's Work in Progress
2011 Ranger XLT, 4X4, 4 door Super Cab. 4.0L, 5 Speed M50D-R1HD, 3.73:1, 8.8" open differential, Jason Pace cap
2019 Ford Ranger STX FX4, Super Crew, 2.3L Ecoboost, 10 speed automatic, 3.73:1 with rear locker, Leer 100XR cap