[terry and jo]

Cummins and Joe have already touched on this, but the manufacturer's "towing weight" ratings are really just a gimmick, or at very best, a ballpark figure. We have a 2008 Ford F450 that was claimed to have a towing weight back then of 24,600 lbs. I can guarantee that if my truck were to be loaded close to the truck's GVWR of 14,500 lbs and had a 24,600 lb trailer behind, the truck would be over the truck's GCVW.

GVWR of the 41RSSB4 on DRV's website is 21,000 lbs, and that is without anything in the way of extra options such as a larger inverter and extra batteries or a generator.

Extra options and appliances, like a washer and dryer, would chisel away at the cargo carrying weight (CCC) of the trailer. Our trailer came from the factory with a sticker saying we had 2850 lbs of CCC, which included the 3000 watt pure sine wave inverter and two extra batteries.

Also, what year of Sierra do you have? If it is a newer one with the taller bed rails, you may have an issue with clearance between the bed rails and the bottom of the overhang of the trailer.

Terry