I've had 3 Dodge Rams, 97 2500 12 valve, 2004 3500 Dually 24 valve, and 2012 3500 Dually 24 valve. All 3 had Cummins as I pulled up to a 15k fifth wheel camper with the last one. Last August we traded for a motorhome, 2008 Fleetwood Discovery 40X with 5.7 Cummins so I still have a Cummins. I...