I towed a T@B, 1600lb with class II, 2" ball. A BAMBI 16 @ 3500 lb, 350 tongue wt, 2 5/16" ball, towing with a 2015 Pathfinder= class III hitch! No ifs ands or buts! Your auto dealer may advise on GTW, but, when it comes to. Your tow setup and rig overall....please get your advice from a knowledgable AIRSTREAM man! You're located in Lafayette, Co.. Call Windish RV :303-274-9009. Speak to Len, if you can. He is knowledgable salesman. Or, Doug, in service dept. they will give you the facts! Good luck. Evelyn.