I’m about to buy a 98 ram 1500 with a 5.9 to use to swap out my 3.9 from my 03 dakota. Will this work? I understand i’d have to switch the oil pan but other than that just the wiring harness and pcm will all be fine to use in the dakoter? thanks

 

Need to add the wires for the two additional injectors, and flash the pcm so it knows it has a v-8. May have to extend parts of the wiring harness to reach where they need to be. also need to make sure you have the correct flex plate for the 360. Aside from that, pretty straightforward swap.

Moving this to second gen Dakota section.

 

I understand but what i was really asking is will the 98 ram 1500 wiring harness and pcm work in my 03 dakota

 

It should. The 3.9 is basically the same engine as the 5.9, just two less cylinders.

 

You don't switch wiring harnesses, use the one for your v6 and add wiring for the two injectors.

 

Can i just use the flex plate from the ram?

 

Yup, sure can.

 

Shame the 3.7 to 5.7 isn't as easy

 

Yes it is

 

3.7 OR 4.7 to 5.7 isn't as bad as you might think.