I have a 2014 Ram 1500 Ecodiesel without air suspension. I tow a Rockwood 2604WS that weighs about 6200 pounds loaded for travel. The engine and transmission handle this load with ease as long as you realize you've only got about 183 cubic inches of engine under the hood. The engine has a lot of torque at 2,000-3,000 rpm so it never seems to be really straining to do it's job. This is NOT a Cummins, it is not a 6.4 Hemi, and it will not be happy towing 10,000 pounds. It is a quiet, smooth half-ton that gets about 15 mpg towing, 23-24 not towing and 26 on interstate trips. Payload limitations are the limiting rating. As delivered, my yellow door sticker shows 1,200 pounds payload. With the 6,200 pound trailer (800 pounds tongue weight), me, the DW, the dog and a few tools in the bed I'm 80 pounds over the payload rating and 90 pounds over the 6,950 pound GVWR. It's a nice truck, it's not a heavy duty truck.
2015 Rockwood Ultra Lite 2604 WS. Rear LR, large street side slide with small wardrobe slide in BR.
2014 Ram 1500 Eco Diesel Laramie Quad Cab.