Greetings y'all. well i am on the fence about trading in my 20mpg 2006 dodge cummins combo. I want to get a ford. I am looking for the comfort and ride and the space for the kids and the wife and me. i had a 2003 6.0 that spent more time in the shop than the drive way seemed like. Thats how i got the dodge. I am tired of it . i have tried to sell it for 2 years and now takers. now with the price down i could probably trade and be ok. so as the title hints which one 6.0 or 6.4. will have to keep this one fro a loooooooonnnnnnnnnnnnnggggggg time. how is they both doing with a new engine and one with a bad reputation? how does it do in the cold? The Cummins i have has never once missed a beat but i think i have had enuff of riding a wood wagon. need unbiased input for longevity and reliability. TIA.