Do you have a photo of the decal with the GVWR? I‘d be hauling a truck camper. It looks like you may have, judging from what looks like a HappiJack tie down.
Bill
GVWR is 11,300lbs, with 3,856lbs payload according to door stickers. I've not weighed the truck as it currently sits, but you've got a ton of capacity for any slide in camper out there. We used it with a ~2k loaded hallmark pop up, but that wasn't even a load for this thing.