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Welcome to the forum. The 355 is a sizable 5ver so hopefully you have enough truck for it. GVWR is almost 16,500 lbs, which will put your pin weight, when loaded at roughly 3300 lbs...maybe more. Then add up the weight of the hitch and all other cargo that the truck will have...passenger(s), tool box, whatever goes in or on the truck. The question becomes, how much payload capacity does your truth have, based on the sticker on the driver side door post. Most likely you are in Dually territory with that trailer. You may already know all of this, but you didn't say what truck you have for a tow vehicle.