We camp with someone that has a cougar and they have a gmc 2500 Duramax that they tow it with. They just purchased a new cougar and have the same truck, no problems towing. There old camper has been bought by my dad and I've towed it with my 01 gmc 1 ton dually. He still has his 1500 and needs to upgrade before he can tow it. Great case of putting the cart before the horse.
PS the cougar is a great unit. Didn't have any issues. The older lighter color stays cooler than the newer darker color. My dad's is a 2012 and his friends is a new 2016.
Aaron, Erica and Lizzy and Abby the Labs.
2001 GMC Sierra 3500 Dually Diesel