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I have a 99 Durango with the 5.9 in it. My motor blew and I was wondering if the 5.2 or the 4.7 with bolt right up to the tranny and everything else. I am having trouble finding another 5.9 plus I wouldn't mind going smaller with the engine.
the 5.2 and 5.9 should bolt right up to the same transmission and motor mounts, however i believe you also need to change the PCM if you change the engine in order to get the intended performance.