Some of you are getting way off in the weeds.
This is an RV forum. Dissing perfectly RV capable trucks because they will not go up a 30% or whatever grade at a construction site is just not important to an RVer.... I am sure there is a more appropriate forum to discuss such issues.
I find them boring to the point that I fail to read most of it.
I will suggest that if those that want to spend time on these long detailed posts want people to actually read them.... find a forum where people are interested in such dribble. Otherwise you are just wasting your time, as most here just don't care about your issues.