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I am looking at an 02 Durango with a bad 4.7. I have an 03 Durango with 5.7 with only 155k. Everything on the 02 is better except engine. How difficult is swapping? I presume transmission and driveline swap too? 5.7 uses bigger transmission correct? Thanks
 

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4.7 to 5.7, from what I read is easier due to the transmission being the same.

4.7 to 5.9, is more work as the transmissions are different.
 

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You would have to swap engine harness, transmission harness, engine, engine mounts, transmission, transmission mounts, driveshaft, pcm.
 

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So how did it go with the swap.did u have any trouble
8 months later I'm still trying to get this 5.9l running .I have 5 dam pcm in my garage an one broken.an the one that broke was the one that work..lolthe engine came out of a durango.well I have two pcms an all it does is start real fast an turn off.....help
 
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