Hey Dave, I picked up 3, 2018, 2500's, and one needs and engine. They are all currently 5.7's. The dealer here has a warranty 6.4 with 35,000 miles out of a 2015, 2500 that had a minimal cold run noise, that he is willing to part with. Wil it work in the 2018 truck?
And, would there be any reason to chase the noise, or just run it as is? Thanks. Jim.