Tow in third gear, maximum 60mph. I have towed G. Caravans behind 91-94 G. Caravans with 3.3, no problem. I do have large transission coolers and am very careful about allowing lots of stopping room. You can exceed the factory rating IF you drive with some sense. If you are involved in a wreck you will be liable for some type of citation such as dangerous operation or whatever charge they can invent, so do NOT get involved in a wreck when towing over the factory limit or over your state limit for unbraked vehicles. All of our vans have class III hitches partly so we can use the same drawbars as the trucks and partly because we do tow more than class II weights at times.