I'm not bad mouthing Cummins in general and I don't want to get into a ******* match about which is better. I've owned several Cummins and several Duramaxes which I feel gives me the background to form my own opinions based on my real world experiences, not some "on paper power war" or some "the internet said it so it must be true BS"
I haven't had a single problem with any of my Duramaxes, motor or truck. Maybe I'm just lucky.
A couple of my Cummins had the lift pump issues, 2 of them had manual transmission problems, one lost reverse and one lost 2 or 3 syncros. 3 of them had trackbar and ball joint problems.
I don't deny that Duramaxes had injector issues in the early ones. I honestly haven't heard about the overheating but I certainly won't say it isn't true. My buddies '05 Cummins had to have the intercooler and all injectors replaced which was a well known problem.
So, all I'm saying is don't sit here and tell me that the Dodge / Cummins is perfect, we all know it isn't. They have NUMEROUS problems over the years, front end issues, failed lift pumps that in turn knocked out injection pumps, plastic P. O. S. intercoolers that literally blew apart, injector problems etc.
In MY experience, I've had FAR more problems with Dodge / Cummins then I have had with Duramax. My latest 6. 7 is very, very disappointing, lousy fuel mileage and crummy power. That being said, my favorite truck I've owned is still my '94 Dodge, I put 200k on it without doing any repairs to it but clutches. Which I fully expect when I start cranking the HP. It was the easiest to tinker with, didn't have any electronic / EPA crap to deal with, etc.
I would love to see the EPA go away and Dodge bring back the 5. 9, but that's just not going to happen, so until pigs grow wings, I'm gonna stick with Duramax. All you GM haters stick with Dodge. I'll grab my injectors and coolant, you grab your lift pumps, intercoolers, ball joints and trackbars. LOL
Cheers =)
Hell, if anybody wants to hitch up to some weight and pull some hills here in MT for some comparisons just send me a message, probably be pretty fun! (I'm talking stock for stock, when it comes to modified the guy who's fastest is the guy with the deepest pockets, regardless of the brand

) I'll even supply the beer and the BBQ!