Need actual owners experience on which 1 ton to buy.

Cummins,

Where are you pulling 14% grades for miles? I pull those kind of grades, most are at speeds of under 40 mph, most are local, ie city, county roads, some are forest service or campground roads, also clients driveways, had one that was 33% for 100 yds or so. Interstates can not be more than 6% with spurts to 8%. HP needed to pull a 14% grade at the weight you are at 60 mph, would be three times what your rig has.

Marty