Look on the inside of the drivers door. There should be a yellow label with the payload capacity that reads something like "The weight of people and cargo should not exceed XXX". From this XXX payload you need to subtract the weight of all people, tools, firewood, bikes, etc in the truck and last, but certainly not least, the hitch weight of the trailer. My guess would be less than 900 lbs left for hitch weight. Loaded weight in my opinion should be no more than about 7,000 to 7,500 lbs. That means the dry weight should probably be about 6,000 to 6,500 lbs. Different trailers have hitch weights between about 10% and 15% so you need to run the actual numbers. I'm just giving my best quick estimate.