Spark Plug Screwup Will it hurt?

64drtGt said
They are both the same heat range just different length

Gotcha, I had to look that up and you are correct. I was basing my info on experience with NGK plugs (my preference) and they list the FR4 plug for your P/U and the ZFR6F-11 plug for the Durango, which is a colder plug.