Guys,
Thanks for all of the responses so far. Please keep them coming.
After much consideration I'm leaning towards a 2012-2015 Chevy K2500 with the 6.0L gas. The extra expense and maintenance cost of the Diesels are just too much to justify.
I will only be towing the camper 4-8 times a year and most of those trips are under 150 miles. I know a few guys that have gas 3/4 ton trucks and have picked their brains to the point of annoyance.
To a person they have really nothing bad to say about the gas engines when pulling a trailer and a couple use them every day for work trucks.
A diesel would pull better sure, but I don't think they make sense for my needs.
Elk Country