Howdy everyone, new here. I did a search but didn't really find what I was looking for so I'm starting a new thread. If you were building a dream truck one ton dually 4x4 (6x6?) [Insert year, make, model, here] and you were going to load up your family, hook a 5th wheel toy hauler RV to it and head out across America what year/make/model diesel engine would you drop in? Why? Let's say your rig is already built and you have $12-$15k to spend on the engine, tranny and transfer case. What mill brings the wood to the dungarees for you? I'm looking for power, performance, reliability and would like to be able to cruise at 70-80 mph with a load with no worries. Also, maintenance intervals at regular jiffy style lube stations and repairs at reputable diesel shops with worse case scenarios being dealership repairs (for motor not body) is needed. Decent mileage would be welcome but I do understand pulling 20k 80mph tends to drain the tank lol. I've been told by Ford guys to go 7.3 or upgraded 6.0, 6.7 if money isn't a worry. I've been told by Chevy guys to go Duramax. And of course Dodge guys say 12v Cummins. I don't want to hear brand loyalty, I want to hear from diesel guys what diesel they would put their family in and travel America without stressing about it. That's why I am here, to learn sooooo LET's GET READY TO RUUUMBLLLLLLE...