go with the PSD or better yet a get the duramax,now i'll have my head taken off..i agree the cummins is a awesome diesel but they didn't get the truck part very good,some of the most notorious problems are wheel bearing's,all the electronics on the truck,automatic tranny's,a very small interior and the bumpers rust quicker then the ford and gm trucks..i have experience in buying computers for these dodges and a whole lot of other things o keep it runnin..