lol no reason to get cold feet. ive owned pleanty of cummins, and pleanty of duramax's. I can tell you without a doubt the Ram in my experience is far superior both in pulling characteristics, and well... everyone knows the interior crushes the competition hands down no contest. I test drove a lariat F450 just for interest sake before i made purchase on my next ram, and it was as if i was sitting in a fisher price plastic factory, with the most dated center stack that iam sure thomas edison had a input on. Stay the course... every truck has their issues. I have a "temporary" 19 duramax denali dually right now while i wait for my 5500 laramie to be built, and this will be the 3rd duramax ive had with the dreaded coolant tank sensor gone bad... whole tank has to be pulled. yay.