IdaD wrote:
I don't have a source on the duty cycle thing other than common sense based on experience.
So it's just some made up thing...
Let's put it this way - buying brand new all the manufacturers warrant that their 2016 1/2 tons powertrain is up to the task of hauling that configuration's GCWR for 60k miles. They warrant their 3/4 and 1 ton gas trucks to the same standard. If they would have higher warranty expenses in the 1/2 ton segment they would lower the GCWR. But they don't and as long as you stay within the parameters of YOUR truck and follow the severe duty maintenance you will be fine no matter if it's 1/2, 3/4, or 1 ton.
It's the guys overworking their vehicles or neglect maintenance that are the ones that have issues. Run anything at it's limits and wear may increase. Load up a 3/4 ton to GCWR and your wear will be the same as a 1/2 ton doing GCWR.