I have an 06 3500 srw megacab with toyo at 285/75/17 D tires G56 6 speed and a 2" leveling kit in front with air bags in the rear. I tow a 36' toyhauler in the summer months. Last winter it wheel hopped in the snow even if it idled. I had no air in the bags, I tried weight in the bed and no weight in the bed. Do I need traction bars or what. It did this in 2 and 4 wheel drive. What do you think?