I had a 2005 2500 with the cummins. Mine had the 4:10's and 4 Spd tranny. Just sold it last fall with 140k on it. Pulled a 5th wheel all over with it.

It lost a water pump at 115k and a door lock actuator at 125k. Sometimes, the intermittent wipers had a mind of their own and would go at random intervals. Those were the only problems I ever had with it.

In fact, I wish I still had it. I replaced it with a 2016 Ram 2500 with the Cummins. Got 10k on the current one with no issues.

"Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same." - Ronald Reagan