I'm guessing you're referring to my sig picture. I haven't weighed my ST30BH but the brochure lists it at 5280 lbs. dry and 31'7" exterior length. We don't pack a lot into it as to keep it as light as possible and rarely tow with much fresh water..just enough for a flush or two along the way if needed. The Tundra has the 5.7 liter engine, I believe about 381 HP, 4.30 rear end gearing, 10,100 lb towing capacity. We got the Tundra to better handle the Colorado mountain passes. I always tow in Tow/Haul mode and on the steepest passes drop into third gear and keep the revs to around 3,000 RPM. It'll still go faster but don't want to rev above that. Keeps us at around 55 MPH which is O.K. Haven't been in a hurry since I took early retirement about 9 years ago. Two years ago we took a grand tour of Wyoming/Montana for about three weeks and towed the same trailer with a Durango 5.7 liter with 3.92 rear end. Durango was O.K. but the Tundra performs much better. Really like the Equal-I-Zer hitch too. Hope this is the info you were looking for, if not ask away.