I have a 29TE travel trailer, it's 6100 lbs empty, 7700 lbs loaded, my truck is a 2wd 5.3 V8 with the HD transmission cooling package, and towing package. It's a sylverado 1/2 ton 2010 crew cab, the d...
Here is more info on finding your gear ration: RPO codes
From my own experience, pulling 5,000 lbs with a 5.3/ 4 speed and 3.42 gear ration Silverado was dismal. The truck did well on flat roads but struggled on small and moderate inclines.