I have put over 28 thousand miles on my Dodge Ram Cummins td in 11 months Over 21 thousand of that has been towing my 33 foot trailer including two trips to Alaska since I bought it.
I have not had even one small issue with the truck. Unless you include my disagreement with Ram about not including the Engine block heater cord.
They reimbursed me for the cord and it was installed by a dealer for free.
Yes I am happy. No matter what the chevy and ford boys say you cannot beat the Cummins engine/trans combo. (I have the six speed auto and it;s great)