Have a 2007 Dodge 1500 2 Wheel Dr. that I’m looking to swap onto my Cummins. Does anybody know if the wiring harnesses on the dash are different and I just have to change the cluster. Or do I have to swap the whole dash?

 

Dash itself should be the same, if the donor was a gas motor, then yeah, will need to swap the cluster from yours. The wiring *might* be different gas to diesel, but, don't know for sure.

 

What year is your Cummins? There may be more differences based on that.