I have a 2010 Silverado with a 5.3 and 6L80 automatic.
I pull a 1750 lb trailer with a 3000 lb car on it, and the truck doesn’t even break a sweat.
I also have a 24’ enclosed with 8’ ceilings and cabinets, generator, air compressor, etc. My 1997 GMC Suburban with a 454 pulls it ok, but it’s...