jblake240ExplorerFeb 26, 20142 wheel drive or 4 wheel driveI’m looking at a new Ram 3500 diesel- why should I go with a four wheel over a 2 wheel drive. I's siding on a 2 Wheel. Pulling a Keystone RV Mountaineer 375FLF Fifth Wheels Hitch Weight 2,120 lbs...Show More