atc, hate to see ya go. Might get a better trade in at a Nissan dealership than with other mfg dealerships if you go that route.
Just my 2 cts, suggest to check if chev fuel management system still is an issue including oil consumption. They had serious problems with more than few fuel management motors, and had poor customer support about that issue. But they are good looking trucks.
Older Ford trucks I've had problem with was A/C compressor failure at 5yrs, lol, on all. They're good looking trucks also.
Toyota (before Tundra was a thought) was the champ of all with 0 problems, but heard yrs after mfg of mine that Made in Mexico frames would rust in half. Mostly those driven in the snow areas. Today they are also good looking trucks.
Good luck to ya.