Okay, we're seriously considering selling the motorhome (because we hardly use it) and downsizing to a RAM 2500/3500 with a slide in camper. The motorhome is costing us $12K/year in payments/reg/insurance and we don't think it's worth that. I had a 2003 Dodge RAM 3500 DRW and liked it, but I don't have any experience with the newer RAMs with the 6.7L Cummins. Looking at 2010-2015. I know the earlier auto trans were crap, but what about the newer auto trans ? How many miles are the 6.7L's good for ?