yes a bully dog, set on the lowest setting, and the hills in Tennesse says it will out pull my friends 07 dodge and another friends 06 duramax. Going From Chattanooga to Nashville on I24 which I believe is a 15% grade for about 15 miles I left both of them like they were tied to a stump, and they were doing all they could. Also the dodge had a lighter load than I had, I was pulling a 28' enclosed with car in side, he was pulling a 16' open trailer with car.