Just picked up an 05 Ram 3500 Quad cab 4x4 w/ the Cummins diesel. I love it, and got an unbelievable deal. Anyone looking for a new Dodge try McDonogh Dodge in Metuchen and ask for Frank they will do you right.
I have an '03 2500 QC 4X with the cummins. 75K and not a single problem. Getting 20-22 mpg at about 50/50 highway/country driving. Did you get the auto or the 6 shooter? I have the auto (48RE) and it has been great so far, but I don't pull the guts out of it either. One more year (end of 100K Warenty) and the Edge Box will go on her to up the HP to around 500 or so.